Bsod - No More Irp Stack Locations :(

[Sanguimancer]

I really have no idea where to put this because I don't know whether it is a hardware or software issue, so this is my best guess.

When I turn on my computer that I built over the summer it gets to the "Welcome" screen of windows and then goes to a BSOD saying "NO MORE IRP STACK LOCATIONS". It was working fine, I downloaded a new version of Kerio Personal Firewall and browsed the internet for about 15 minutes. Then I turned off my computer and 5 minutes later realized I had forgotten to do something and got the BSOD error. I have no idea what else could have happened, this is the list of things that I think it could possibly be:

Some compatability issue with Kerio Personal Firewall (Free Edition)
Someone might have hijacked my computer (seems unlikely)
My Hard Drive might be going bad, I have been having thoughts about this
recently, but I thought it was just my paranoia.


Edit**
Ok, I got my computer to function again. I used system restore from safe mode and it works again now. I am fairly sure it was either something due to the new version of Kerio Personal Firewall. I hope this works, I'm not going to try downloading the new KPF again, at least for a while.

I run Windows XP SP 2, with a P4C800-E mb. The HD is Western Digital. Thanks for any help.

(Oh, also I can get into Safe Mode and I deleted Kerio PF and the problem still occurs, but there was no "uninstall" option so I just deleted the files)

[fetus]

Downloaded Kerio update and got same message and BSOD. Luckily I had ghosted the whole drive 2 days earlier and am currently using the other drive.
I am using win2k, not xp. I think the update is dodgey. What a disapointment. I thought kerio was great and even persuaded my boss to use it but have had to warn him not to update it. Which has made me look a tw*t.

Will try to recover as you suggested. Thanks for helping me isolate the problem to kerio. I will be contacting their tech support for an apology! and perhaps a fix.

cheers