Windows not starting up

[Guest]

After the black screen with the blue bar sliding across it, my system freezes on a blank scree

If I then switch the power off and restart in safe modes, it scrolls through commands and freezes on the line multi(0)disk(0)partition(1)\windows\system32\drivers\mup.sys

What causes this problem and how do I fix it

 

[roger]

Hi Will_Dee,

After the black screen with the blue bar sliding across it, my system freezes on a blank screen

If I then switch the power off and restart in safe modes, it scrolls through commands and freezes on the line multi(0)disk(0)partition(1)\windows\system32\drivers\mup.sys.

What causes this problem and how do I fix it?

Check this post, it may apply to you:
http://www.earthv.com/tips_detail.asp?TipID=63

Good luck