Hello, I need help My Lenovo Ideapad y470 (specs listed there. i7, 8g ram, nVidia geforce 550m with Intel HD 3000 optimus) is BSODing right after logging in. It boots fine, and I type in my password, it shows me the desktop for a bit, and around that moment I get one of the BSODs attached. It also BSODs in safe mode, but not right away. I login in safe mode, I see the desktop, it actually lets me do stuff for a short while. As I do stuff I get the BSOD. It's a little different when I boot into safe mode with command prompt. I can get a lot done in the DOS window. I can also launch windowed applications from there, but as I use them I get the BSOD. I'm suspecting it has something to do with gdi or whatever draws the ui controls. My laptop has nVidia optimus with Intel HD 3000 and AFAIK Intel is used during all of these BSODs. Intel is using the system ram for its video memory. I reinstalled the Intel drivers. Tried couple of times and got a BSOD in the middle many times. Finally I saw the very end of the installation, after which I got a BSOD. Afterwards when I tried installing it said it could not install (perhaps because it was already installed). I ran memtest86 the whole night (five passes) and there were no errors. I ran Video Memory Stress Test (VMST) (bootable and windows application) and it showed many many errors. However, I believe VMST may be wrong because I think it thinks I have 4gig video ram. I read the instructions on how I should ask for help, and I used the tool to grab the minidumps. I'm attaching them here. Unfortunately, when I try to run either of RAMMon or CPU-Z I instantly get a BSOD almost right after I see the window, therefore I cannot provide those screenshots. I suspected that it could be the RAMs (2 x 4g). I removed either ram stick by itself and nothing changed about the problem. I highly doubt that both rams broke at the same time. I downloaded and used Knoppix live DVD, and nothing bad happened. I played extreme tuxracer for a while and everything was just fine. However, I believe in Linux nVidia card was being used but I wasn't sure. Please let me know if you could help me diagnose this problem, and remember that I can do very little in safe mode before I get another BSOD. I'm quite capable and can follow high level advice. (Programmer, Phd in CS, etc.) Thanks in advance.