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Reset the Repository.
Boot into Safe Mode without networking and open a command prompt as administrator. Now Type net stop winmgmt and hit Enter. This will stop the Windows Management Instrumentation Service. Next go to C:\Windows\System32\wbem and rename the repository folder to repositoryold Restart.
Now again open a command prompt as administrator, type net stop winmgmt and hit Enter. Next Type winmgmt /resetRepository and hit Enter.
Restart your system.
Now see if you can create a System Restore Point manually