net stop wuauserv net stop cryptSvc net stop bits net stop msiserver This forces Windows to create a fresh folder. In the same Command Prompt, type:
Open Command Prompt as Administrator (right-click the Start button). Type each line, pressing Enter after each: pending download windows update
Don't let a pending update turn into a delayed security risk. Spend five minutes running the Command Prompt fix above, then grab a coffee while the downloads roll in. net stop wuauserv net stop cryptSvc net stop