We can try the instructions below to help run sfc /scannow but I have been speaking with colleagues and they are suggesting a complete format and reinstall of Windows. There seem to be many problems and we may be chasing them down for some time and never actually be able to find them all.

Go to Start >> Run >> type regedit and this will open the Registry Editor. Go to
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup]
Highlight the Setup folder.On the right pane, locate the
SourcePath.
Double-click the SourcePath and replace the drive letter in the box to C:\ (if you copied the files to your C:\ drive). Make sure it's C:\ and not C:\i386.
Close the registry editor.
Let me know when that is finished.
