I've installed a new new motherboard and now i can't start window because of the horrible mup.sys error. can ultimate boot cd help in any way?
I'd like to be able to retrieve data from my hard drive, or even better, fix the problem completely.

any help would also be appreciated, I'm completely stumped

I know this is an old post but rather have it fixed...we need more info on what you are trying to do. Did you have windows installed on another motherboard and then you swapped motherboard and started windows?

Would also look at this:http://www.aitechsolutions.net/mupdotsysXPhang.html

_________________
~Just StopSpazzing~

Visit the UBCD Wiki: http://wiki.ultimatebootcd.com
Please check your UBCD ISO MD5 Hash Sum; May prevent issues later on by not having an exact copy.

Currently Working on Common Issues and Repair Tips on the Wiki.