Calling all tMP's IT experts.... (Sorry this is a long post but I'm trying to get it all down to get an answer quickly) I've been having problems with my home PC over the last few weeks, which I thought I'd fixed... until last night! My PC is a 3-year old built (non-branded) desktop running XP, which was a reasonable spec for the time so should be more than capable of handling the things I'm trying to do with it. Since about Christmas its gradually been getting slower and slower, despite not having any new gizmos or software added in that time. The only thing I've done is to uninstall my old version of Office for Office 2003, which I did a week os so ago and which completely screwed it! Basically what happens is I log in, and then have a minute or two before the whole system hangs. I get an hourglass (which still turns) and I can minimise any open windows but no minimised window will then restore and nothing else happens. I can't even open the Task Manager. The hard drive is spinning more than a Labour government. If I open Task Manager as soon as I log in, I can see that a svchost.exe file is the one taking all the processer capacity. If I watch it processor capacity grows until it hits 100% which is the point of no return. If I get there before I can shut this file down, and the PC will run happily all night. I know svchost is a registry file and having reseached it a bit I ran various registry cleaners and even de-fragged the registry. I also ran several virus, adware, spyware etc checks - all to no avail. I've also tried to repair, and rollback windows with no luck. Having done as much as I could and had no joy and after seeking advice from the IT bods at work I decided to do a re-format, which I did at the weekend. On Sunday I reinstalled and patched-up XP and put all the various drivers back on, also added my virus checker - all was fine. On Monday night I added the new Office installation plus MSN Messinger - again everything seemed to be OK. But last night I logged in and got exactly the same problems as before the format. There's hardly anything on the hard drive now (just the software I mention - I haven't even put my backed-up files back on yet) and as far as I know the Windows install went perfectly. I don't understand why it was [seemingly] fine one night then back to being a nightmare the very next night. But thinking about it just now I didn't re-boot after installing Messinger. So to save my sanity, can anyone here suggest what is going on? Is this a hardware fault? Is it Messinger? Office? Am I best to re-format again? Its driving me mad, please Help!!!