After 3 days of restless googling to no avail, I've succumbed to my bsod abd have been driven to actually make my own post on a tech support forum.First off, I did not install any new programs or hardware when this happened. Three days ago, after a random fit of programs crashing and freezing, I was forced to shut down my laptop via holding the power button. Upon attempting to boot back in, I encountered a bsod of some sorrt (it wasn't actually blue...), which had an error along the lines of "0xc0000225 - A device is not accessible". This prevented me from booting into windows at all, including safe mode.A couple days' worth of screwing around with the bios settings my friend's windows 7 recovery disc led to some sort of progress, as I managed to convince the laptop to let me boot into safe mode (I had to run a disk check twice - once with "Automatically fix file system errors" checked, and again with both settings checked). At this point, any attempts to boot into any mode but safe mode gets me an actual BSOD - the illustrious DRIVER_IRQL_NOT_LESS_OR_EQUAL. (Safe mode with networking doesn't work.)From safe mode, I copied the memory dump to check out what caused the error, but... I have no idea what the eff I'm looking at. The only part of it that catches my attention (besides the fact that I'm missing a bunch of symbols) is "Probably caused by netio.sys". That being said, could any generous, awesome soul be of assistance? :)I uploaded the dump here: http://www.filedropper.com/memoryThanks in advance!

Ummpf, a dump of 121 MB? Anyway, the mainly affected files seem to be netio.sys and tcpip.sys, so's not surprising that "safe mode with networking doesn't work". There's something wrong with your network connection. The usual suspects (if corrupted system files or a misconfigured network can be excluded as possible causes) would be 3d party programs that operate at a very low level and can interfere with low-level drivers like netio.sys. The most typical example are AV programs that aren't fully compatible with Windows 7. It would be worth a try to uninstall all those applications in safe mode before trying a new start. "I think there is a world market for maybe five computers.” (Thomas J. Watson, Sr.)

Thanks for the reply. I only had Mcafee installed in terms of av software. I just tried uninstalling it and the blue screen is still there, but now I get a new one when I try logging into safe mode (after it gets stuck on loading classpnp.sys for a few minutes) - a BAD_SYSTEM_CONFIG_INFO. Fml.Now what? :\

This error points to RAM problems (faulty modules?) or to a damaged registry. The uninstall of AV software alone would possibly make the previous BSOD reappear (if parts of the software remain despite uninstallation) but not cause this new one. If you can boot from DVD, try to check the memory from there. If it seems ok, try to do a repair upgrade (install Windows 7 as "in-place" upgrade over itself) to recover missing or corrupt system files that prevent the OS from starting. Your installed programs won't be touched by this."I think there is a world market for maybe five computers. (Thomas J. Watson, Sr.)

Alright, well, this is odd - IT BOOTED NORMALLY! I'm not sure how or why, but after a successful startup repair from the recovery disk (which is weird, considering the last 12 or so I tried failed), I am now able to boot into windows normally - except it takes much longer to get past the "starting windows" screen than it used to. I'm guessing the new BSOD gave the recovery disk an error it could actually fix. But, hey, whatever works. I'm just glad I have a working laptop now.I did indeed try what you suggested - installing as an upgrade apparently required me to log into windows normally, which I couldn't do, and the memory test had found nothing wrong with the memory.Thanks a bunch for the help so far! Would you happen to have any idea why it's booting so slow?I'll definitely update if I get any new problems.