Uninstalling SP1 RC to prepare for Sp1 RTM

Ref: http://forums.microsoft.com/TechNet/ShowPost.aspx? Postid = 2993059 & siteid = 17

You can remove SP1 by using eitherPrograms and featuresOr the command line. note, however, that You Cannot uninstall SP1 offline using any method. in addition, it is not possible to uninstall the permanent prerequisite updates (kb937287, kb935509, and kb938371 ). however, you can uninstall kb936330 and kb942554. you also Cannot uninstall the Service Pack and other updates that were installed using an integrated installation.

To uninstall SP1 by using programs and features

1. OpenControl Panel, ClickPrograms, And then clickView installed updates.

2. InMicrosoft WindowsList, right-clickService Pack for Microsoft Windows (kb936330), And then clickUninstall.

3. When prompted, restart the computer.

To uninstall SP1 by using the command line

1. Open an elevated Command Prompt window (clickStart, TypeCommandInStartsearchBox, right-clickCommandprompt, And then clickRun as Administrator).

2. Run the following command (assuming that Windows6.0-KB936330.exe is in the C: \ Temp folder ):C: \ Temp/Windows6.0-KB936330-X86.exe/X: C: \ Temp

3. To create a sandbox, TypeMD <sandbox>.

4. To remove SP1, TypeStart/W pkgmgr.exe/M: C: \ temp \ windows6.0-KB936330-X86.cab/up/S: <sandbox>.

5. After pkgmgr.exe completes, you will be prompted to restart the computer (unless you specified/QuietCommand with pkgmgr ).

Cheers,

-Tony Mann