hey folks. i did a google search and saw a page from this site then thought id ask on this forum for more info so i hope someone can help as im finding this a little worrying... Windows File Protection: Files that are required for Windows to run properly have been replaced by unregongnized versions. To maintain systems stability Windows must restore the original versions of these files, Insert your windows XP professional CD-ROM now. right so i instert my CD-ROM WinXP Pro Disc. it pops up asking for what i want to do, ya know the usual - do i want to install windows, all the usual stuff from the disc and the Windows File Protection pop up goes. when i take the XP disc out give it a few seconds then the WFP window comes back. iv been getting it for 24 hours now as it first came on this time last night so i am very curious as to the problem. i dont REALLY want to re-format my hard drive but its all everyone is telling me... for the 1st time a few minutes ago i clicked 'Cancel' as the option from the pop up, it said am i sure i dont want to update these files i clicked yes. that was the last of it but im sure it will return. any help would be much apriciated folks. cheers !