Hi !
1 . Make sure the computer is free from spywares and viruses.
2 . Do a Disc cleanup
3.
Step1: Download subinacl.msi from the link
http://go.microsoft.com/fwlink/?LinkId=23418 and install it.
Step2: Now open notepad and paste the following exactly as it is into
the notepad
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=system=f
Step 3: Now go to File->Save As and save the file in 'C:\Program
Files\Windows
Resource Kits\Tools' as reset.cmd
Step 4: Open Command Prompt and go to
program files\windows resource kits\tools
Step5: Now type 'reset.cmd' and hit Enter (Without Quotes)
You will see the Command Line Tool running for about 10 mins or so.
After the
process restart the computer and try installing SP2 again.