Aporte original por: Brian Reeder ,
Boot the computer while pressing F8. then have it start-up from the Last Known time it was working. See if that helps. If it boots up then you should go here. (If it doesn't then it is up to you what to do.) http://www.askvg.com/fix-windows-7-keeps-checking-for-updates-for-hours/ Install all 8 Windows 7 updates. Then do the rest of the updates using the Normal Windows Updates.