I recently built an Unattended Windows XP CD, along with all of the Apps I needed and the hotfixes etc.. Everything installs and looks flawless, until I seemingly randomly get a popup window with the following message: "Windows File Protection Error, files that are required for Windows to run properly have been replaced by an unrecognized version, to maintain system stabality, Windows must restore the original version of these files, insert your Windows XP Professional Service Pack 2 CD now." I cannot for the life of me figure out why this is happening, I followed the guide precisely and used a legit licensed copy of XP and slip streamed SP2 into it. The only solution I can seem to think of is to add 'SFC /SCANNOW" to the end of my batch.cmd file so it does a thorough check after my install, but that adds at least another 10 minutes to my installs. This kind of defeats the purpose of this whole project of saving time for me. Anyone else experience this that can please assist me in resolving this problem? Thanks in advance! Cory