Step 1
Step 2
Step 3
Login into windows server r2 , there go to command prompt
with administrator rights (Run as administrator)
Type the cmd
Wusa /uninstall /kb: 976932 and press enter uninstall bar
will come it will take 10 to 15min to uninstall the server pack1 from server.
Using this commands we have to remove sp1 setup backup files
from windows server OS 2008 r2
Dism.exe /online / Cleanup-Image /spsuperseded
Happy Daxing..