Failed to boot to Vista after Parallels upgrade

After updating Parallels (3.0 build 4124) and VMWare Fusion (beta 4 build 48339) to the latest version; the real fun started when I got a death of blue screen when I booted bootcamp Vista from Fusion. Initially I upgraded Fusion and booting to bootcamp vista seemed to working fine. But after I installed Parallels; then I couldn’t boot back using Fusion. Looks like the Parallels tools drivers has caused the problem. As the error is coming from prlfs.sys file and this file looks like part of Parallels. So, to get around this issue, I started the Vista in direct boot to uininstall Parallel tools; but that popped that I can only do this when running under virtual machine but nothing seemed to be right; becuase I can’t load the control panel nor get into any settings. I was able to check this by going to Explorer -> Uninstall or change a problem.

Booting with Parallels causes new blue screen of death. So ran a check disk on vista by doing a direct reboot; which recovered lot of files (especially all parallels related)…after done with check disk; rebooted with Parallels under safeboot with network and uninstalled the parallels tools and did a clean shutdown.

Now booting with Fusion worked fine. For the direct boot, windows asked me to enter the product key again before it actually started log me in…so upon doing so, could able to login to my system and everything seemed to be working now; and am not daring to start Parallels again with Bootcamp partition, but instead will stick to Fusion and Bootcamp. This recommends me that, I should be away from Parallels for time being.