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- BitLocker Group Policy settings (Windows 10) - Windows security | Microsoft Docs |
Windows 10 bitlocker enterprise deployment free -
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Set up MDT for BitLocker (Windows 10) - Windows Deployment | Microsoft Docs
- Windows 10 bitlocker enterprise deployment free
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. You can use BitLocker to encrypt the entire contents of a data drive.
You can use Group Policy to require that BitLocker be enabled on a drive before the computer can write data to the drive. BitLocker can be configured with a variety of unlock methods for data drives, and a data drive supports multiple unlock methods.
Yes, BitLocker supports multifactor authentication for operating system drives. For requirements, see System requirements. Dynamic disks are not supported by BitLocker.
Dynamic data volumes will not be displayed in the Control Panel. The dism module doesn't support wildcards when searching for feature names.
To list feature names for the dism module, use the Get-WindowsOptionalFeatures cmdlet. The following command will list all of the optional features in an online running operating system. This command prompts the user for a reboot. The Enable-WindowsOptionalFeature cmdlet doesn't offer support for forcing a reboot of the computer.
This command doesn't include installation of the management tools for BitLocker. For a complete installation of BitLocker and all available management tools, use the following command:. 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. The options of the Require additional authentication at startup policy apply. With this policy setting, you can control whether a BitLocker-protected computer that is connected to a trusted local area network and joined to a domain can create and use network key protectors on TPM-enabled computers to automatically unlock the operating system drive when the computer is started.
With this policy setting, you can configure whether BitLocker requires additional authentication each time the computer starts and whether you are using BitLocker with a Trusted Platform Module TPM. If one authentication method is required, the other methods can't be allowed. Users can configure advanced startup options in the BitLocker Setup Wizard. Users can configure only basic options on computers with a TPM. Existing drives that were protected by using standard startup PINs aren't affected.
The startup PIN must have a minimum length of four digits, and it can have a maximum length of 20 digits. By default, the minimum PIN length is 6.
You can require that startup PINs set by users must have a minimum length you choose that is between 4 and 20 digits.
Users can configure a startup PIN of any length between 6 and 20 digits. DMA is available on hot pluggable PCI devices if the device is turned on, regardless of whether a user is signed in. With this policy setting, you can configure whether standard users are allowed to change the PIN or password used to protect the operating system drive. With this policy setting, you can specify the constraints for passwords that are used to unlock operating system drives that are protected with BitLocker.
Passwords can't be used if FIPS-compliance is enabled. Users can configure a password that meets the requirements you define. The default length constraint of eight characters will apply to operating system drive passwords and no complexity checks will occur. With this policy setting, you can control whether the BitLocker Setup Wizard on computers running Windows Vista or Windows Server can set up an additional authentication method that is required each time the computer starts.
If you choose to require an additional authentication method, other authentication methods can't be allowed. The BitLocker Setup Wizard displays the page that allows the user to configure advanced startup options for BitLocker. Typically, there's a small performance overhead, often in single-digit percentages, which is relative to the throughput of the storage operations on which it needs to operate.
Although BitLocker encryption occurs in the background while you continue to work, and the system remains usable, encryption times vary depending on the type of drive that is being encrypted, the size of the drive, and the speed of the drive.
If you are encrypting large drives, you may want to set encryption to occur during times when you will not be using the drive. You can also choose whether or not BitLocker should encrypt the entire drive or just the used space on the drive when you turn on BitLocker. On a new hard drive, encrypting just the used spaced can be considerably faster than encrypting the entire drive. When this encryption option is selected, BitLocker automatically encrypts data as it is saved, ensuring that no data is stored unencrypted.
If the computer is turned off or goes into hibernation, the BitLocker encryption and decryption process will resume where it stopped the next time Windows starts.
This is true even if the power is suddenly unavailable. No, BitLocker does not encrypt and decrypt the entire drive when reading and writing data. The encrypted sectors in the BitLocker-protected drive are decrypted only as they are requested from system read operations.
BitLocker Group Policy Reference. Microsoft Intune Overview. BitLocker CSP. Windows Server Installation Options. How to update local source media to add roles and features. How to add or remove optional components on Server Core Features on Demand. BitLocker: How to deploy on Windows Server and newer.
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