Access denied xpsp3 installation

While installing Windows XP SP3, you receive the following error:

Windows XP Service Pack 3 installation failed.
Access is denied.


Resolution:

1. Backup the Registry

2. If subinacl.exe is not installed, download and install

subinacl.exe.
3. Create a file called reset.cmd with Notepad. Copy the text below into the file reset.cmd and run reset.cmd from an account with administrative privileges:

Windows XP Home Edition:



cd /d "%ProgramFiles%\Windows Resource Kits\Tools"



subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f

subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f

subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f

subinacl /subdirectories %SystemDrive% /grant=administrators=f /grant=system=f

subinacl /subdirectories %windir%\*.* /grant=administrators=f /grant=system=f


Regards,
Avinash P.

And also anybody having problem regarded Windows XP SP3 installation Can Refer to this Guide About

http://forums.techarena.in/guides-tutorials/1083873.htm