Hi guys, First time poster so be gentle with me Operating system =============== Windows XP SP3 Last night I finished playing WoW, turned my laptop off and went to bed. I had downloaded nothing new nor visited any new websites etc. This morning I turned my laptop on and after 30seconds or so the screen had frozen.I restarted the laptop and the same thing. and again. (you get the picture). RunDLL32.exe? ============ The 'Not Responding' message mentioned the rundll32 so I tried the following: - from the CMD prompt I typed SPC \Scannow (or similar, I'm doing this from memory!). I inserted my disk at the prompt but again the machine froze after a set period of time. - I copied the rundll32 from another machine running xp (though I believe sp2) and attempted to paste it over the old one on my laptop at c:\windows\system32 but received a message about the file being in use. The machine then froze but I did notice the old file was 32KB and the new one was 16KB (ish). - I attempted, from the command prompt: expand d:\i386\rundll32.ex_ c:\windows\system32\rundll32.exe but this returned an error writing (I think) to C I then moved on to watching the task manager processes. Nothing seemed to be eating up the CPU. CPU usage was settled at 1% ish System Idle Process was settled at 99% with slight fluctuations during startup but nothing that made me think 'wow!'. MSconfig ======== again nothing here on startup seemed obvious but I disabled msn, some itunes stuff, some nvidia stuff Safe Mode ========== Boots but instead of freezing the laptop turns itself off after the time frame Safe Mode with Networking ======================= As above. Any ideas? Remembering I only have like 30seconds to do anything once the laptop boots Interestingly the mouse moves but my other USB ports don't seem to function as my keyboard has no output on the screen and my iphone doesn't seem to register when I plug it in. I have a bit of a background in IT admin but by no means an expert! I hope I've given you enough information! I need to get this fixed asap as I use it for open university and can't afford to have it out of action I wondered, as a quick fix, if simply upgrading to Windows 7 would 'wipe over' the problem but in itself then i don't have driver disks so not sure if that would save me time.