BSoD related to iaStor.sys

iaStor.sys belongs to the storage drivers for the controller on the motherboard.
BUT, it also rears it's ugly head in a BSOD if you are infected with some variants of the TDSS rootkit.
There are other, less likely causes, but these are the 2 most common.

Try this free tool to see if you are infected with TDSS: http://support.kaspersky.com/viruses...?qid=208280684 (it'll run in Safe Mode). If you are, and it still doesn't boot, you're in for some gyrations to get it to work (running multiple virus removal tools and multiple commands with bootrec and Startup Repair - that work in most (but not all) cases.

See if you can update the Storage drivers in Safe Mode (some installers will allow this) - and try the storage drivers from http://downloadcenter.intel.com to make sure you get the most current version.

We can troubleshoot this further, but if it's the rootkit you're best off with wiping the hard drive and reinstalling Windows.

To do this it's essential that you:
- backup your stuff (and scan it with an antivirus)
- find the restore disks for your system (not the restore partition on the hard drive)
- wipe the drive (to include all freespace) with either DBAN or KillDisk (both are free with a Google search)
- install Windows.

Thanks for replying. Firstly, I don't have a disk to reinstall, only a Recovery Partition with Windows reinstaller on it. If I go into Control Panel, I could easily reinstall with a few clicks and some waiting, I'm just waiting to borrow a hard-drive from my friend. Secondly, I've scanned with AVG, or with as much of it as possible in Safe Mode, and that got nothing malicious. I was thinking about downloading Microsoft Security Essentials on the laptop I'm posting from and then transferring it with a pendrive like I did with RegCure, which claimed would solve the problem. And thirdly, as far as I know, I have all the latest drivers from Intel, but I'll take a look at the links you posted. Thanks again. :)

Glad to hear it! Run several other scans (free online scans here: Free Online AntiMalware Scanners (read the details at the link)) to make sure that you've removed everything nasty.

The TDSS rootkit is a very nasty little bugger - so you'll want to make sure that your system is thoroughly scanned for any remnants (it even hides in the free space and MBR of your drive).