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Old 07-12-2008
Posts: n/a
Access denied xpsp3 installation

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

Avinash P.

Last edited by Yogesh : 08-12-2008 at 11:55 AM. Reason: Links removed
Old 08-12-2008
Join Date: Dec 2004
Posts: 419
Re: Access denied xpsp3 installation

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

Steps to take Before You Install Windows XP Service Pack 3
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