A alder0 Member Joined Jul 1, 2013 Posts 7 Jul 2, 2013 #1 I'm running W7 ultimate SP1 on a Mac Pro (2008) under Bootcamp, using the latest version from Mountain Lion. However, Bootcamp is not the issue; it actually started when I couldn't reinstall Zune--for an unknown reason--to deal with my Windows Phone, and I tried many, probably bad, solutions before posting to Microsoft, who could not help. I ended up using Zune on another computer to connect to the phone and returned to repair the damage. Of course, I took such measures as checking all disks, deleting the Software distribution folder & repairing all .net versions possible up to 4.5 Meanwhile I have the following issues: 1) Windows update hangs looking for updates 2) Most fixits hang while loading (including Windows6.1-KB947821-v27-x64) 3) The few that did go through came back with "unable to fix problem", but no specific problem named. 4) When trying to run "Regsvr32 "C:\Windows\System32\wudriver.dll"" I got the message that it was loaded, but entry point not found 5) Same when trying qmgr.dll; other wu files & qmgrprxy.dll OK 6) So I tried sfc, but scannow stuck at 9% saying there were files that couldn't be repaired. Searched the log & couldn't find any reference to non-repairable files. Please, help!