issues installing .NET framwork updates

If you come across issues installing .net framework updates follow the instructions below

1)      Run the cleanup tool for framework 2.0, 3.0 and 3.5. (Can be downloaded from the following location http://blogs.msdn.com/cfs-file.ashx/__key/CommunityServer-Components-PostAttachments/00-08-90-44-93/dotnetfx_5F00_cleanup_5F00_tool.zip )

2)      Once you get the cleanup successful message, reboot the server

3)      After rebooting the server log in to the server and go to c:\windows\System32 and search for mscoree.dll file. If you find it, rename it to mscoree.dll.old and proceed to step 4. if you don’t find it move to step 4.

4)      Download framework 3.5 SP1 in your local drive from the following location http://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e-fdaa79a8ac3d/dotnetfx35.exe (this package will install 2.0 SP2, 3.0 SP2 and 3.5 SP1)

Enable verbose logging

A)     Go to Start->Run type %temp% and hit enter. Delete\move all the files.
B) Open registry editor and manoeuvre to "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer". If you do not find the Installer key, create one. Within installer key, create the "string value" with name "Logging". Modify the value as "icewarmupv!" without quotes
C) Now run the downloaded framework 3.5 SP1 from the local drive.