Bitlocker drive encryption windows 10. How to Encrypt a Hard Drive with BitLocker in Windows 10

Jan 20, 2023 | seeto

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Bitlocker drive encryption windows 10

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This is because BitLocker will not unlock the protected drive until BitLocker’s own volume master key is first released by either the computer’s TPM or by a USB flash drive containing the BitLocker startup key for that computer. However, computers without TPMs will not be able to use the system integrity verification that BitLocker can also provide.

To help determine whether a computer can read from a USB device during the boot process, use the BitLocker system check as part of the BitLocker setup process. This system check performs tests to confirm that the computer can properly read from the USB devices at the appropriate time and that the computer meets other BitLocker requirements. To turn on, turn off, or change configurations of BitLocker on operating system and fixed data drives, membership in the local Administrators group is required.

Standard users can turn on, turn off, or change configurations of BitLocker on removable data drives. If the hard disk is not first and you typically boot from hard disk, then a boot order change may be detected or assumed when removable media is found during boot. The boot order typically affects the system measurement that is verified by BitLocker and a change in boot order will cause you to be prompted for your BitLocker recovery key.

For the same reason, if you have a laptop with a docking station, ensure that the hard disk drive is first in the boot order both when docked and undocked.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Table of contents Exit focus mode. Table of contents. Applies to Windows 10 Windows How BitLocker works with operating system drives You can use BitLocker to mitigate unauthorized data access on lost or stolen computers by encrypting all user files and system files on the operating system drive, including the swap files and hibernation files, and checking the integrity of early boot components and boot configuration data.

How BitLocker works with fixed and removable data drives You can use BitLocker to encrypt the entire contents of a data drive. Note Dynamic disks are not supported by BitLocker.

Note TPM 2. It has a secure update mechanism to help prevent a malicious BIOS or boot firmware from being installed on the computer.

Because the password filter that’s used to validate password complexity is located on the domain controllers, local user accounts can’t access the password filter because they’re not authenticated for domain access. When this policy setting is enabled, if you sign in with a local user account, and you attempt to encrypt a drive or change a password on an existing BitLocker-protected drive, an “Access denied” error message is displayed.

In this situation, the password key protector can’t be added to the drive. Enabling this policy setting requires that connectivity to a domain be established before adding a password key protector to a BitLocker-protected drive. Users who work remotely and have periods of time in which they can’t connect to the domain should be made aware of this requirement so that they can schedule a time when they will be connected to the domain to turn on BitLocker or to change a password on a BitLocker-protected data drive.

Passwords can’t be used if FIPS compliance is enabled. This policy setting is used to require, allow, or deny the use of smart cards with removable data drives. This policy setting is used to require, allow, or deny the use of passwords with removable data drives. If you choose to allow the use of a password, you can require a password to be used, enforce complexity requirements, and configure a minimum length.

To configure a greater minimum length for the password, enter the wanted number of characters in the Minimum password length box. When set to Require complexity , a connection to a domain controller is necessary when BitLocker is enabled to validate the complexity of the password. When set to Allow complexity , a connection to a domain controller is be attempted to validate that the complexity adheres to the rules set by the policy. However, if no domain controllers are found, the password is still be accepted regardless of actual password complexity and the drive is encrypted by using that password as a protector.

For information about this setting, see System cryptography: Use FIPS-compliant algorithms for encryption, hashing, and signing. The object identifier is specified in the enhanced key usage EKU of a certificate.

BitLocker can identify which certificates can be used to authenticate a user certificate to a BitLocker-protected drive by matching the object identifier in the certificate with the object identifier that is defined by this policy setting. BitLocker doesn’t require that a certificate have an EKU attribute; however, if one is configured for the certificate, it must be set to an object identifier that matches the object identifier configured for BitLocker.

The Windows touch keyboard such as used by tablets isn’t available in the preboot environment where BitLocker requires additional information, such as a PIN or password. It’s recommended that administrators enable this policy only for devices that are verified to have an alternative means of preboot input, such as attaching a USB keyboard. When the Windows Recovery Environment isn’t enabled and this policy isn’t enabled, you can’t turn on BitLocker on a device that uses the Windows touch keyboard.

If you don’t enable this policy setting, the following options in the Require additional authentication at startup policy might not be available:. This policy setting is used to require encryption of fixed drives prior to granting Write access.

When this policy setting is enabled, users receive “Access denied” error messages when they try to save data to unencrypted fixed data drives. See the Reference section for additional conflicts. If BdeHdCfg. If this policy setting is enforced, a hard drive can’t be repartitioned because the drive is protected. If you are upgrading computers in your organization from a previous version of Windows, and those computers were configured with a single partition, you should create the required BitLocker system partition before you apply this policy setting to the computers.

This policy setting is used to require that removable drives are encrypted prior to granting Write access, and to control whether BitLocker-protected removable drives that were configured in another organization can be opened with Write access.

If the Deny write access to devices configured in another organization option is selected, only drives with identification fields that match the computer’s identification fields are given Write access.

When a removable data drive is accessed, it’s checked for a valid identification field and allowed identification fields. These fields are defined by the Provide the unique identifiers for your organization policy setting. If the Removable Disks: Deny write access policy setting is enabled, this policy setting will be ignored.

This policy setting is used to prevent users from turning BitLocker on or off on removable data drives. The values of this policy determine the strength of the cipher that BitLocker uses for encryption. If you enable this setting, you can configure an encryption algorithm and key cipher strength for fixed data drives, operating system drives, and removable data drives individually.

Changing the encryption method has no effect if the drive is already encrypted or if encryption is in progress. In these cases, this policy setting is ignored. This policy doesn’t apply to encrypted drives. Encrypted drives utilize their own algorithm, which is set by the drive during partitioning.

When this policy setting is disabled or not configured, BitLocker will use the default encryption method of XTS-AES bit or the encryption method that is specified in the setup script. This policy controls how BitLocker reacts to systems that are equipped with encrypted drives when they’re used as fixed data volumes. Using hardware-based encryption can improve the performance of drive operations that involve frequent reading or writing of data to the drive. The Choose drive encryption method and cipher strength policy setting doesn’t apply to hardware-based encryption.

The encryption algorithm that is used by hardware-based encryption is set when the drive is partitioned. By default, BitLocker uses the algorithm that is configured on the drive to encrypt the drive. The Restrict encryption algorithms and cipher suites allowed for hardware-based encryption option of this setting enables you to restrict the encryption algorithms that BitLocker can use with hardware encryption. If the algorithm that is set for the drive isn’t available, BitLocker disables the use of hardware-based encryption.

Encryption algorithms are specified by object identifiers OID , for example:. This policy controls how BitLocker reacts when encrypted drives are used as operating system drives. If hardware-based encryption isn’t available, BitLocker software-based encryption is used instead.

This policy controls how BitLocker reacts to encrypted drives when they’re used as removable data drives. This policy controls whether fixed data drives utilize Used Space Only encryption or Full encryption. Setting this policy also causes the BitLocker Setup Wizard to skip the encryption options page so no encryption selection displays to the user. Changing the encryption type has no effect if the drive is already encrypted or if encryption is in progress. Choose Full encryption to make it mandatory for the entire drive to be encrypted when BitLocker is turned on.

Choose Used Space Only encryption to make it mandatory to encrypt only that portion of the drive that is used to store data when BitLocker is turned on. This policy is ignored when you are shrinking or expanding a volume and the BitLocker driver uses the current encryption method. For example, when a drive that is using Used Space Only encryption is expanded, the new free space isn’t wiped as it would be for a drive that is using Full encryption.

The user could wipe the free space on a Used Space Only drive by using the following command: manage-bde -w. If the volume is shrunk, no action is taken for the new free space. For more information about the tool to manage BitLocker, see Manage-bde. This policy controls whether operating system drives utilize Full encryption or Used Space Only encryption.

Setting this policy also causes the BitLocker Setup Wizard to skip the encryption options page, so no encryption selection displays to the user. This policy is ignored when shrinking or expanding a volume, and the BitLocker driver uses the current encryption method. For example, when a drive that is using Used Space Only encryption is expanded, the new free space isn’t wiped as it would be for a drive that uses Full encryption.

This policy controls whether fixed data drives utilize Full encryption or Used Space Only encryption. For example, when a drive that is using Used Space Only encryption is expanded, the new free space isn’t wiped as it would be for a drive that is using Full Encryption.

The Allow data recovery agent check box is used to specify whether a data recovery agent can be used with BitLocker-protected operating system drives. For more information about adding data recovery agents, see BitLocker basic deployment. In Configure user storage of BitLocker recovery information , select whether users are allowed, required, or not allowed to generate a digit recovery password.

Select Omit recovery options from the BitLocker setup wizard to prevent users from specifying recovery options when they enable BitLocker on a drive. This means that you can’t specify which recovery option to use when you enable BitLocker. Instead, BitLocker recovery options for the drive are determined by the policy setting.

Storing the key package supports the recovery of data from a drive that is physically corrupted. Select the Do not enable BitLocker until recovery information is stored in AD DS for operating system drives check box if you want to prevent users from enabling BitLocker unless the computer is connected to the domain and the backup of BitLocker recovery information to AD DS succeeds.

If the Do not enable BitLocker until recovery information is stored in AD DS for operating system drives check box is selected, a recovery password is automatically generated. This policy setting is used to configure recovery methods for BitLocker-protected drives on computers running Windows Server or Windows Vista.

This policy is only applicable to computers running Windows Server or Windows Vista. Two recovery options can be used to unlock BitLocker-encrypted data in the absence of the required startup key information. Users can type a digit numerical recovery password, or they can insert a USB drive that contains a bit recovery key. Saving the recovery password to a USB drive stores the digit recovery password as a text file and the bit recovery key as a hidden file.

Saving the recovery password to a folder stores the digit recovery password as a text file. Printing the recovery password sends the digit recovery password to the default printer. For example, not allowing the digit recovery password prevents users from printing or saving recovery information to a folder. The digit recovery password isn’t available in FIPS-compliance mode.

To prevent data loss, you must have a way to recover BitLocker encryption keys. Otherwise, a policy error occurs. This provides an administrative method of recovering data that is encrypted by BitLocker to prevent data loss due to lack of key information. BitLocker recovery information includes the recovery password and unique identifier data. You can also include a package that contains an encryption key for a BitLocker-protected drive.

This key package is secured by one or more recovery passwords, and it can help perform specialized recovery when the disk is damaged or corrupted. This option is selected by default to help ensure that BitLocker recovery is possible. A recovery password is a digit number that unlocks access to a BitLocker-protected drive.

Key packages may help perform specialized recovery when the disk is damaged or corrupted. TPM initialization might be needed during the BitLocker setup.

This policy setting doesn’t prevent the user from saving the recovery password in another folder. The Allow data recovery agent check box is used to specify whether a data recovery agent can be used with BitLocker-protected fixed data drives. In Configure user storage of BitLocker recovery information , select whether users can be allowed, required, or not allowed to generate a digit recovery password or a bit recovery key. Storing the key package supports recovering data from a drive that has been physically corrupted.

To recover this data, you can use the Repair-bde command-line tool. For more information about the BitLocker repair tool, see Repair-bde. Select the Do not enable BitLocker until recovery information is stored in AD DS for fixed data drives check box if you want to prevent users from enabling BitLocker unless the computer is connected to the domain and the backup of BitLocker recovery information to AD DS succeeds.

If the Do not enable BitLocker until recovery information is stored in AD DS for fixed data drives check box is selected, a recovery password is automatically generated. The Allow data recovery agent check box is used to specify whether a data recovery agent can be used with BitLocker-protected removable data drives. In Configure user storage of BitLocker recovery information , select whether users can be allowed, required, or not allowed to generate a digit recovery password.

Select the Do not enable BitLocker until recovery information is stored in AD DS for removable data drives check box if you want to prevent users from enabling BitLocker unless the computer is connected to the domain and the backup of BitLocker recovery information to AD DS succeeds. This policy setting is used to configure the entire recovery message and to replace the existing URL that is displayed on the pre-boot recovery screen when the operating system drive is locked.

Enabling the Configure the pre-boot recovery message and URL policy setting allows you to customize the default recovery screen message and URL to assist customers in recovering their key.

Not all characters and languages are supported in the pre-boot environment. We strongly recommended that you verify the correct appearance of the characters that you use for the custom message and URL on the pre-boot recovery screen. Because you can alter the BCDEdit commands manually before you have set Group Policy settings, you can’t return the policy setting to the default setting by selecting the Not Configured option after you have configured this policy setting.

To return to the default pre-boot recovery screen leave the policy setting enabled and select the Use default message options from the Choose an option for the pre-boot recovery message drop-down list box. This policy controls how BitLocker-enabled system volumes are handled with the Secure Boot feature. When enabled or not configured BitLocker uses Secure Boot for platform integrity if the platform is capable of Secure Boot-based integrity validation.

When disabled BitLocker uses legacy platform integrity validation, even on systems that are capable of Secure Boot-based integrity validation. Secure boot ensures that the computer’s pre-boot environment loads only firmware that is digitally signed by authorized software publishers. Secure boot also started providing more flexibility for managing pre-boot configurations than BitLocker integrity checks prior to Windows Server and Windows 8. When this policy is enabled and the hardware is capable of using secure boot for BitLocker scenarios, the Use enhanced Boot Configuration Data validation profile group policy setting is ignored, and secure boot verifies BCD settings according to the secure boot policy setting, which is configured separately from BitLocker.

Disabling this policy might result in BitLocker recovery when manufacturer-specific firmware is updated. If you disable this policy, suspend BitLocker prior to applying firmware updates.

This policy setting is used to establish an identifier that is applied to all drives that are encrypted in your organization. These identifiers are stored as the identification field and the allowed identification field. The identification field allows you to associate a unique organizational identifier to BitLocker-protected drives. This identifier is automatically added to new BitLocker-protected drives, and it can be updated on existing BitLocker-protected drives by using the Manage-bde command-line tool.

An identification field is required to manage certificate-based data recovery agents on BitLocker-protected drives and for potential updates to the BitLocker To Go Reader. BitLocker manages and updates data recovery agents only when the identification field on the drive matches the value that is configured in the identification field.

In a similar manner, BitLocker updates the BitLocker To Go Reader only when the identification field’s value on the drive matches the value that is configured for the identification field.

The allowed identification field is used in combination with the Deny write access to removable drives not protected by BitLocker policy setting to help control the use of removable drives in your organization.

It’s a comma-separated list of identification fields from your organization or external organizations. You can configure the identification fields on existing drives by using the Manage-bde command-line tool. When a BitLocker-protected drive is mounted on another BitLocker-enabled computer, the identification field and the allowed identification field are used to determine whether the drive is from an external organization.

Multiple values separated by commas can be entered in the identification and allowed identification fields. The identification field can be any value upto characters.

This policy setting is used to control whether the computer’s memory will be overwritten the next time the computer is restarted. BitLocker secrets include key material that is used to encrypt data.

This policy setting applies only when BitLocker protection is enabled. A platform validation profile consists of a set of PCR indices that range from 0 to The default platform validation profile secures the encryption key against changes to the following:. Changing from the default platform validation profile affects the security and manageability of your computer. This policy setting determines what values the TPM measures when it validates early boot components before unlocking a drive on a computer running Windows Vista, Windows Server , or Windows 7.

BitLocker’s sensitivity to platform modifications malicious or authorized is increased or decreased depending on inclusion or exclusion respectively of the PCRs. This policy setting determines what values the TPM measures when it validates early boot components before unlocking an operating system drive on a computer with native UEFI firmware configurations.

If your environments use TPM and Secure Boot for platform integrity checks, this policy is configured. When enabled Before you turn on BitLocker, you can configure the boot components that the TPM validates before it unlocks access to the BitLocker-encrypted operating system drive. If any of these components change while BitLocker protection is in effect, the TPM doesn’t release the encryption key to unlock the drive.

Instead, the computer displays the BitLocker Recovery console and requires that the recovery password or the recovery key is provided to unlock the drive. When disabled or not configured BitLocker uses the default platform validation profile or the platform validation profile that is specified by the setup script.

This group policy setting only applies to computers with a native UEFI firmware configuration. A platform validation profile consists of a set of PCR indices ranging from 0 to This policy setting determines if you want platform validation data to refresh when Windows is started following a BitLocker recovery.

A platform validation data profile consists of the values in a set of Platform Configuration Register PCR indices that range from 0 to For more information about the recovery process, see the BitLocker recovery guide. A platform validation uses the data in the platform validation profile, which consists of a set of Platform Configuration Register PCR indices that range from 0 to The setting that controls boot debugging 0x is always validated, and it has no effect if it’s included in the inclusion or the exclusion list.

The use of a recovery key is permitted. This policy must be enabled before any encryption key is generated for BitLocker. When this policy is enabled, BitLocker prevents creating or using recovery passwords, so recovery keys should be used instead. You can save the optional recovery key to a USB drive. You must be an administrator to perform these procedures.

For more information about setting this policy, see System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing. When a computer transitions to Sleep, open programs and documents are persisted in memory.

This might lead to conditions where data security is compromised. However, when a computer hibernates the drive is locked, and when it resumes from hibernation the drive is unlocked, which means that users will need to provide a PIN or a startup key if using multifactor authentication with BitLocker.

Therefore, organizations that use BitLocker may want to use Hibernate instead of Sleep for improved security. This setting doesn’t have an impact on TPM-only mode, because it provides a transparent user experience at startup and when resuming from the Hibernate states.

The scope of the values can be specific to the version of the operating system. PCR 7 measures the state of Secure Boot.

Secure Boot ensures that the computer’s preboot environment loads only firmware that is digitally signed by authorized software publishers. PCR 7 measurements indicate whether Secure Boot is on and which keys are trusted on the platform. This reduces the likelihood of BitLocker starting in recovery mode as a result of firmware and image updates, and it provides you with greater flexibility to manage the preboot configuration. Skip to main content.

This browser is no longer supported. Download Microsoft Edge More info. Table of contents Exit focus mode. Table of contents. Note For reliability and security, computers should also have a TPM startup PIN that can be used when the computer is disconnected from the wired network or can’t connect to the domain controller at startup. Important Not all computers support enhanced PIN characters in the preboot environment.

Note These settings are enforced when turning on BitLocker, not when unlocking a volume. Note These settings are enforced when turning on BitLocker, not when unlocking a drive. Note BitLocker doesn’t require that a certificate have an EKU attribute; however, if one is configured for the certificate, it must be set to an object identifier that matches the object identifier configured for BitLocker. Warning This policy doesn’t apply to encrypted drives.

Note The Choose drive encryption method and cipher strength policy setting doesn’t apply to hardware-based encryption. Note This policy is ignored when you are shrinking or expanding a volume and the BitLocker driver uses the current encryption method.

Note This policy is ignored when shrinking or expanding a volume, and the BitLocker driver uses the current encryption method. Note If the Do not enable BitLocker until recovery information is stored in AD DS for operating system drives check box is selected, a recovery password is automatically generated. Important To prevent data loss, you must have a way to recover BitLocker encryption keys.

Note This policy setting doesn’t prevent the user from saving the recovery password in another folder. Note If the Do not enable BitLocker until recovery information is stored in AD DS for fixed data drives check box is selected, a recovery password is automatically generated.

Important Not all characters and languages are supported in the pre-boot environment. Important Because you can alter the BCDEdit commands manually before you have set Group Policy settings, you can’t return the policy setting to the default setting by selecting the Not Configured option after you have configured this policy setting.

Warning Disabling this policy might result in BitLocker recovery when manufacturer-specific firmware is updated. Note Changing from the default platform validation profile affects the security and manageability of your computer. Warning Changing from the default platform validation profile affects the security and manageability of your computer.

Important This group policy setting only applies to computers with a native UEFI firmware configuration. Note The setting that controls boot debugging 0x is always validated, and it has no effect if it’s included in the inclusion or the exclusion list. Submit and view feedback for This product This page. View all page feedback. In this article.

 
 

 

Bitlocker drive encryption windows 10

 
BitLocker Drive Encryption is a data protection feature that integrates with the operating system and addresses the threats of data theft or exposure from. Windows BitLocker How to Enable & Disable · Click the Windows Start Menu button. · Windows In the search box, type “Manage BitLocker.” Windows. BitLocker Drive Encryption is a data protection feature available for Windows Having BitLocker integrated with the operating system helps to address the.

 
 

Bitlocker drive encryption windows 10

 
 
BitLocker Drive Encryption is a data protection feature available for Windows Having BitLocker integrated with the operating system helps to address the. BitLocker is a feature that has been around for a long time, and it provides a way to encrypt the data on the hard drive to prevent unauthorized. BitLocker Drive Encryption is a data protection feature available for Windows Having BitLocker integrated with the operating system helps to address the.

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