When opening Sql Server Management Studio I'm getting the following error message:

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Then when I have a look at the Event Viewer the following message is displayed related to this:

Activation context generation failed for "c:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\ssms.exe". Dependent Assembly debuggerproxy.dll,processorArchitecture="X86",type="win32",version="" could not be found. Please use sxstrace.exe for detailed diagnosis.

Also the Installer won't work.

Any solution for this please ?


  • A simple Google search brought this simple answer. The link says: open an elevated command prompt(Run As Admin) -> type "sfc /scannow"(w/o the double quote). "This will scans all protected system files and replaces incorrect versions with correct Microsoft versions." Or update your .NET version in case you are using an outdated one. – mr5 May 9 '14 at 0:23
  • And I think this one belongs to superuser – mr5 May 9 '14 at 0:24
  • @mr5 tools like SSMS are on topic here. Can you post your comment as an answer? – Jack Douglas Jun 9 '14 at 10:56
  • Open an elevated command prompt (Run As Admin)
  • Type sfc /scannow

The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache. The %WinDir% placeholder represents the Windows operating system folder.

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  • Welcome to DBA.SE! Thank you for trying to provide a solution to this problem. Can you elaborate on your answer? How and why will performing this action resolve the question being asked? – World Wide DBA Dec 21 '18 at 20:13

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