windows 7 upgrade - crashed half way help :(

Hey guys, stupidly volunteered to help my friend upgrade a vista laptop to windows 7 - she was adamant she wanted the upgrade option rather than a clean install, dude to lots of programs and having 4 users worth of data. 95% through the upgrade it locked up and crashed. now on reboot i get

"the computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install windows, click "OK" to restart the computer, and then restart the installation."

This just loops up and i can't seem to get round it, i have tried booting the disk, and trying to reinstall the upgrade, but it wont let me continue or start over, tried 'repair' and system roll-back but still no choice.

Bit worried im gonna now have take the drive out get the data off and wipe, any ideas?

Hmm, you could try making an automated system recovery disc, and trying booting with it. Or get Ultimate Boot CD, one of it's many utilities may be of help.

mmm, did you do a image of the disk before the install? if did you could wipe drive.. then put old data back on.. then do install again?