Windows 7 SP1 Install Fails

[CFeld]

To resolve this it essentially involves doing a manual system restore.

- Open the recovery console

- Change working directory to whatever the root folder of the Windows install is (might be D: or some other letter for some people):

cd /d C:\windows\system32\config

Rename the following files by typing the following:

ren default default.old
ren sam sam.old
ren security security.old
ren software software.old
ren system system.old

- Change the working directory:

cd regback

- Copy the files from this directory to the previous directory as follows:

copy default c:\windows\system32\config
copy sam c:\windows\system32\config
copy security c:\windows\system32\config
copy software c:\windows\system32\config
copy system c:\windows\system32\config

- Having done this, Restart your computer, and it should boot all the way with no errors. However, it is very unstable, run CHKDSK (chkdsk /B /r /f) run, sfc /scannow.