It's my mum-in-laws laptop my wife has borrowed. It's an Acer 1640z running Windows XP Pro. I've completely overwritten the backup files as the original discs have gone missing and there was a virus on the damn thing.
Basically despite a couple of clean installs with 2 different copies of XP it won't shut down properly without opening Task Manager and shutting down from there.
In Task Manager there's a system file permanently running at 50 - 100% and when shutting down explorer.exe doesn't. I've tried the latest drivers after reading there were driver problems with the Intel wireless driver with no luck.
There was a sysfader.exe not shutting down problem I sorted but there's still the other issues.
So any ideas? I still don't think it's a hardware problem but I may be wrong. It is a laptop that has been badly abused after all.
Win 7 although probbly will work fine (as long as drivers etc are available for the hardware), it aint a fix lol.... Love to say that to my customers... 'yeah server needs updating to Win2k8, that'll sort it' lol
First off, if the machine shuts down fine (ie cleanly; no endtasking anything) from task manager (or safe mode) then your issue is software related, hardware is fine.
You say you've rebuilt it (reinstalled windows) twice, but get same error. Are you ONLY installing XP and testing it or are you putting windows, drivers, updates, other software on also before testing it?
I would suggest rebuild it with XP, and test straight away. Then if it shuts down fine, reinstall drivers / software etc one by one and test in between each install. Until you find software causing issue.