I have been asked, well ordered to upgrade some pcs and I've seen the instructions but they aren't working: Go through the process of requesting an upgrade. Then: Go to C:\windows\softwaredistribution\download\ and delete everything in that folder Open command prompt as administrator. Type in wuauclt.exe /updatenow but don't execute it. Go to software update and initiate a search Go back to the command prompt and execute the command. Nothing happens. I don't get an error message either. Anyone done this successfully? I am trying it now on a Win 8.1 machine that has probably not been updated regularly.