You cannot enable the BitLocker Drive Encryption feature on a computer that is running Windows 7 or Windows Server 2008 R2

Applies to: Windows Server 2008 R2 EnterpriseWindows Server 2008 R2 DatacenterWindows Server 2008 R2 for Itanium-Based Systems More

Symptoms


Assume that you want to deny access to removable media by using a User Configuration or Computer Configuration Group Policy setting on a computer that is running Windows 7 or Windows Server 2008 R2. To do this, you enable the CD and DVD: Deny read access Group Policy setting that is in the one of the following locations:
User Configuration\Administrative Templates\System\Removable Storage Access
Computer Configuration\Administrative Templates\System\Removable Storage Access
When you try to enable the BitLocker Drive Encryption feature on the computer, the operation fails. Additionally, you receive the following error message:
Access Denied

Resolution


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 SP1
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix replaces the hotfix that is described in Microsoft Knowledge Base (KB) article 2652246. For more information about KB article 2652246, click the following article number to view the article in the Microsoft Knowledge Base:
2652246 You cannot enable the BitLocker Drive Encryption feature on a computer that is running Windows 7 or Windows Server 2008 R2

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.1.760
    0.21xxx
    Windows 7 and Windows Server 2008 R2RTMLDR
    6.1.760
    1.21xxx
    Windows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Fveapi.dll6.1.7600.21228271,63207-Jun-201205:27x86
Fveapibase.dll6.1.7600.21228104,44807-Jun-201204:42x86
Fveapi.dll6.1.7601.22013271,63207-Jun-201205:06x86
Fveapibase.dll6.1.7601.22013104,44807-Jun-201204:32x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Fveapi.dll6.1.7600.21228344,54407-Jun-201205:56x64
Fveapibase.dll6.1.7600.21228113,15207-Jun-201205:31x64
Fveapi.dll6.1.7601.22013345,56807-Jun-201205:56x64
Fveapibase.dll6.1.7601.22013113,15207-Jun-201205:37x64
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Fveapi.dll6.1.7600.21228711,76007-Jun-201204:51IA-64
Fveapibase.dll6.1.7600.21228238,59207-Jun-201204:20IA-64
Fveapi.dll6.1.7601.22013711,76007-Jun-201204:42IA-64
Fveapibase.dll6.1.7601.22013238,59207-Jun-201204:18IA-64

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

For more information about how to deny all access to removable devices or media, go to the following Microsoft website:For more information about BitLocker Drive Encryption, go to the following Microsoft website:

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
File nameX86_0dd975ad3c532de6c5779def0a525918_31bf3856ad364e35_6.1.7601.22013_none_eaaeccd7ce7821f4.manifest
File versionNot applicable
File size706
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameX86_2497e26c72541be87424094d1430fc87_31bf3856ad364e35_6.1.7600.21228_none_fd854a7c741b0f1a.manifest
File versionNot applicable
File size706
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameX86_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7600.21228_none_357e5ea96c5cf1bf.manifest
File versionNot applicable
File size9,053
Date (UTC)07-Jun-2012
Time (UTC)06:49
PlatformNot applicable
File nameX86_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7601.22013_none_376a8a29697fc307.manifest
File versionNot applicable
File size9,053
Date (UTC)07-Jun-2012
Time (UTC)05:51
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_88207cb92e11ed53621e5d0ffad222d0_31bf3856ad364e35_6.1.7601.22013_none_7d4ed037ad07e48d.manifest
File versionNot applicable
File size710
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameAmd64_b0ede7a4e87af9f4d7144567f344542d_31bf3856ad364e35_6.1.7600.21228_none_e58069a6b146a962.manifest
File versionNot applicable
File size710
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameAmd64_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7600.21228_none_919cfa2d24ba62f5.manifest
File versionNot applicable
File size9,057
Date (UTC)07-Jun-2012
Time (UTC)06:43
PlatformNot applicable
File nameAmd64_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7601.22013_none_938925ad21dd343d.manifest
File versionNot applicable
File size9,057
Date (UTC)07-Jun-2012
Time (UTC)06:47
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_6d3ada259cc075c0f0b3ae4703ccee8c_31bf3856ad364e35_6.1.7600.21228_none_1e9c13c6e65e4800.manifest
File versionNot applicable
File size708
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameIa64_9426bc43fb146bfdc714f510f00d09c6_31bf3856ad364e35_6.1.7601.22013_none_24365a1d2b3a2a4d.manifest
File versionNot applicable
File size708
Date (UTC)07-Jun-2012
Time (UTC)09:08
PlatformNot applicable
File nameIa64_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7600.21228_none_3580029f6c5afabb.manifest
File versionNot applicable
File size9,055
Date (UTC)07-Jun-2012
Time (UTC)06:00
PlatformNot applicable
File nameIa64_microsoft-windows-securestartup-core_31bf3856ad364e35_6.1.7601.22013_none_376c2e1f697dcc03.manifest
File versionNot applicable
File size9,055
Date (UTC)07-Jun-2012
Time (UTC)05:53
PlatformNot applicable