To determine whether the 886904 update is installed, follow these steps: if the 886904 update is installed, you must uninstall the 886904 update before you install the Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005. I have a couple of steps that should help you to solve this problem.įollow these 4 steps to install the KB925766 correctly:Ī. Welcome to Microsoft Community where you can find all the answers related to Windows.Īccording to the description, it looks that you are not able to install Windows XP Media Center.