My PC has recently started to freeze up. Sometimes it happens after only a few minutes, sometimes a lot longer before it happens. It's Windows XP SP2.

I thought at first it was caused by Automatic Updates, and turned them off, but it wasn't that. I can't relate it to anything I do on it.

When it happens I've used Task Manager to remove tasks but I can never get it to recover, and always have to power off/reboot.

I've checked for viruses and adware/spyware but found nowt.

Any ideas as to what it could be? Let me know if more info required.

p.s. why do Tech computer threads appear above the line? Shouldn't they be below it? Just wondered.