Error loading SQL server management studio - Server 2008 R2

I am running SQL Server 2008 R2. When I attempt to open up SQL server management studio today I am presented with the following error message:

C:\Program Files (x86)\Microsft SQL Server\100\Tools\Binn\Vsshell\Common7\IDE\Ssms.exe
The application has failed to start because its side-by-side configuration is incorrect.

I have run the sxstrace tool and I am presented with the following information:

ERROR: Cannot resolve reference Microsoft.VC80.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="8.0.50727.4027".
ERROR: Activation Context generation failed.

What do I need to do at this point to resolve this error message/

I appreciate your assistance.

skenny10IT ManagerAsked:
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skenny10Connect With a Mentor IT ManagerAuthor Commented:
Thanks to all for responding. I managed to solve the issue:
Selected the product as "Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package Microsoft Visual C++ 2008 Service Pack 1" It then showed the following required updates.

Date / Bulletin Number / KB Number / Title / Bulletin Rating

4/12/2011 MS11-025 2500212 Vulnerability in Microsoft Foundation Class (MFC) Library Could Allow Remote Code Execution Important

7/28/2009 MS09-035 969706 Vulnerabilities in Visual Studio Active Template Library Could Allow Remote Code Execution Moderate

I downloaded and installed the updates.
Phil DavidsonCommented:
It looks like something got corrupt in the SQL Server application.  I would do a backup of the server (especially the data).  Then I would uninstall SQL Server 2008 R2 SSMS completely.  Then I would reinstall it.
HuaMinChenBusiness AnalystCommented:


can you check if the services of SS are up?


what is your recent change to the server?
Vitor MontalvãoMSSQL Senior EngineerCommented:
SSMS it's only a GUI not the engine at all so try to reinstall only the Management Studio from the setup binaries.
You didn't mention but check if you have the SP3 installed. Can fix some bug that you have.
skenny10IT ManagerAuthor Commented:
These steps solved the problem.
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