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Access denied in XPSP3 for windows XP

By avinash_punjabi ·
The ?Access Denied? Error While Installing Windows XP SP3 Release Candidate 2

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

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


1. Backup the Registry

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


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

For complete solution check at :


Avinash P.

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