Update NET Framework 35 on Windows 8Windows Server R2.docx

1、Update NET Framework 35 on Windows 8 Windows Server R2Update for the .NET Framework 3.5 on Windows 8, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2INTRODUCTIONThis update resolves an issue that prevents the optional Microsoft .NET Framework 3.5 feature from being enabled after you ins

2、tall security update 2966827 or 2966828 (described in Microsoft Security Bulletin MS14-046) for the Microsoft .NET Framework 3.5. This update applies to Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2. SummaryMicrosoft has released update 3005628 for the .NET Framework 3.5 on

3、 Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2. Individual, small-business, and organizational users should use the Windows automatic-updating feature to install the fixes from Microsoft Update. To do this, see Get security updates automatically. IT professionals should ref

4、er to the Download information and Command-line switches for this update sections. SymptomsAfter you install security update 2966827 or 2966828 (described in Microsoft Security Bulletin MS14-046) for the Microsoft .NET Framework 3.5 and then try to enable the optional Microsoft .NET Framework 3.5 fe

5、ature in Windows Features for the first time, the feature may not be enabled. When this problem occurs, you may receive an error message that resembles one of the following. Error codeError messages0x800F0906The source files could not be downloaded. Use the source option to specify the location of t

6、he files that are required to restore the feature. For more information on specifying a source location, see The DISM log file can be found at C:WindowsLogsDISMdism.logWindows couldnt complete the requested changes. Windows couldnt connect to the Internet to download necessary files. Make sure that

7、youre connected to the Internet, and click Retry to try again. Installation of one or more roles, role services, or features failed. The source files could not be found. Try installing the roles, role services, or features again in a new Add Roles and Features Wizard session, and on the Confirmation

8、 page of the wizard, click Specify an alternate source path to specify a valid location of the source files that are required for the installation. The location must be accessible by the computer account of the destination server. 0x800F0906 - CBS_E_DOWNLOAD_FAILURE0x800F081FThe source files could n

9、ot be found. Use the Source option to specify the location of the files that are required to restore the feature. For more information on specifying a source location, see The DISM log file can be found at C:WindowsLogsDISMdism.log0x800F081F - CBS_E_SOURCE_MISSINGError code: 0x800F081FError: 0x800F0

10、81FCauseSecurity updates 2966827 and 2966828 (described in Microsoft Security Bulletin MS14-046) for the .NET Framework 3.5 require metadata that is added to the system only when the Microsoft .NET Framework 3.5 feature is enabled. Updates that apply to the .NET Framework 3.5 are meant to be install

11、ed only after the .NET Framework 3.5 feature is installed. This issue is also described in the following Microsoft Knowledge Base: 3002547 Enabling the Microsoft .NET Framework 3.5 optional Windows feature in Windows 8, Windows Server 2012, Windows 8.1, or Windows Server 2012 R2 may fail after you i

12、nstall security update 2966827 or 2966828 ResolutionTo resolve this issue, install update 3005628. Update 3005628 will remove security update 2966827 or 2966828 from any system that does not have the .NET Framework 3.5 feature content installed and present in Windows 8, Windows Server 2012, Windows

13、8.1, and Windows Server 2012 R2. Going forward, security updates 2966827 and 2966828 will be offered only to applicable systems that have the .NET Framework 3.5 feature enabled. Customers who have security update 2966828predeployed to their system by their device manufacturer or who have the securit

14、y update predeployed by their system administrator by using /StartComponentCleanup and /ResetBase option of the Deployment Image Servicing and Management (DISM) tool should install update 3005628. See the Download information section for links to the appropriate updates. Customers who receive and in

15、stall update 3005628 from Microsoft Update channels do not have to take any additional action. Individual customers or IT professionals who decide to run update 3005628 manually or within their managed environments should refer to the Download information and Command-line switches for this update se

16、ctions for more information. Download informationThe following files are available for download from the Microsoft Download Center. For all supported x86-based systemsDownload the NDPFixit-KB3005628-X86.exe package now. For all supported x64-based systemsDownload the NDPFixit-KB3005628-X64.exe packa

17、ge now. Customers who are aware that the DISM /StartComponentCleanup and /ResetBase option was used on their system should download and install the following update: For all supported x86-based systemsDownload the Windows8.1-KB2966828-x86.msu package now.For all supported x64-based systemsDownload t

18、he Windows8.1-KB2966828-x64.msu package now.Command-line switches for this updateThere are no command line switches that are applicable to this update. The update executable must be run by using elevated administrative credentials. Restart informationThis update does not require a system restart aft

19、er you apply it unless files that are being updated are locked or are being used. More informationThe information in this article applies to the following: The Microsoft .NET Framework 3.5 on Windows 8, Windows Server 2012, Windows 8.1, and Windows Server 2012 R2. Security update patch bulletin .NET

20、 Framework for MS14-06 KB2966827 KB2966828 KB3002547 KB3005628 enabling .NET Framework 3.5 Properties Article ID: 3005628 - Last Review: 04/23/2015 08:27:00 - Revision: 2.2Applies to Microsoft .NET Framework 3.5 Keywords: kbexpertiseinterkbinfokbsecadvisorykbsecuritykbsecvulnerabilitykbmsifixmekbfix

21、me KB3005628 Cant Install Microsoft .NET Framework 3.5 in Windows 8 and LaterWe know that Windows 8 and later operating systems dont come with Microsoft .NET Framework 3.5 but there are many 3rd party software programs which require .NET Framework 3.5 installed in Windows. So people use online or of

22、fline methods to install .NET Framework 3.5 in Windows 8 or later as given in following tutorials:o How to Install .NET Framework 3.5 Offline in Windows 8 and Later without Internet Connection?o Download Microsoft .NET Framework 3.5 Offline Installer for Windows 8 and LaterBut there are a few people

23、 who have faced problems while installing .NET Framework 3.5. When they try to install it, they receive error messages such as the source files could not be found or downloaded, etc. These error messages contain different error codes such as 0x800F081F or 0x800F0906.To fix these problems, we posted

24、a troubleshooting article which allows you to install .NET Framework 3.5 in Windows 8 and later without receiving any error messages:o Fix 0x800F0906/81F Errors While Installing .NET Framework 3.5 in Windows 8 and LaterThe above mentioned guide helped a lot of people and fixed the error messages but

25、 still there were a few people who were not able to install .NET Framework 3.5 in Windows 8 and later. Then an AskVG reader Patrik posted a different solution which worked for those people.Patrik: I have three Surface Pro 3 with Windows Pro 8.1 that have the same issue. .NET Framework 3.5 will not i

26、nstall. Ive tried both via DISM, Programs and Features and via full install setup. I have tried to uninstall every single Windows update on the machine and then install via DISM, but that didnt help either. I even tried to install all three KB-updates (KB2966826-8) to see if I can uninstall them to

27、get rid of potential dll-files that could be interfere with the .Net 3.5 setup. So I then decided to wipe it clean via Windows own restore system guide. But it didnt even work after I have done a clean Windows install. Immediately after Windows installed I tried to enable the .NET 3.5 feature, and o

28、f course DISM didnt work either. I have called MS support to get some assistance, but I guess they will call back in a few days or so. Finally, I have solved the issue after many hours. I found a setting in the local computer policy.Today in this article, we are going to share the solution given by

29、our reader Patrik so that all Windows 8 and later users can install .NET Framework 3.5 without any problem.This solution should work for all devices whether its a Desktop PC, laptop or Surface tablet running on Windows 8, Windows 8.1 or Windows 10 operating systems.If you are also facing problems wh

30、ile installing .NET Framework 3.5 in Windows 8 or later, check out following method to fix the issue:1. Type gpedit.msc in RUN or Start search box and press Enter. Itll open Group Policy Editor.2. Now go to:Computer Configuration - Administrative Templates - System3.In right-side pane, look for Spec

31、ify settings for optional component installation and component repair option.4. The option would be set to Not Configured. Double-click on it, set it to Enabled and enable Contact Windows Update directly to download repair content instead of Windows Server Update Services (WSUS) option.Thats it. Now

32、 try to install .NET Framework 3.5 again using Control Panel - Programs and Features or by using DISM command and now youll not face any problem.Attempting to Install .NET Framework 3.5 on Windows Server 2012 R2 Fails with Error Code 0x800F0906 or “the source files could not be downloaded”, even when supplying sourceCharity ShelbourneChar