DPM Installation Error ID:820


When you install DPM 2010, right after the prerequisites  verification you receive an error  “Verify that Windows Management Instrumentation (WMI) Service is running. if…


in order to fix this issue, you need to reinstall WMI , this is how to do it

From an elevated Command Prompt

1. Disable and stop the WMI service.

sc config winmgmt start= disabled

net stop winmgmt

2. Rename the Repository folder under C:\Windows\System32\wbem to Repository.old

3. Run the following commands.

Winmgmt /salvagerepository %windir%\System32\wbem

4. Re-enable the WMI service and then reboot the server to see how it goes.

sc config winmgmt start= auto

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