BSOD every day now

Hello

My OS is a Windows 7 Ultimate X64 (SP1), and since the build of the system there are blue screens. The entire system is 17 months old, and the actual OS age is 4 months (reinstalled the system when I purchased an SSD).

The blue screens exists since the beggining, with 2 different GPUs (GTS 450 and HD 6850), 1 or 2 memory sticks (I've already run the memtest86 in the past, no errors), 2 different OS installs (the ssd and the caviar green hd), 2 or 4 cores enabled.

In this week (2012-05-08), I've tried the driver verification with the verifier.exe, posted here, but after some restarts windows can't start even in the safe mode, so I restored a backup from the start of month and the minidumps before this date was gone.

Since this day, I got 4 BSOD's, and then I've decided to created an account here and followed these steps.

Thanks in advance, and sorry my bad English.

Driver Verifier should not ever the system to BSOD on Safe Mode. Though it may occur if you set it up incorrectly. For the checks to use, do not select IRP Logging, Low Resource Sim or Force Pending I/O Requests.

It does sound like DV is catching something, but unless we have crashdumps from the results we won't be able to figure out what did it. You may wanna try again. Also, you may wanna run some hardware tests as mentioned below:

RAM: Memtest86+ - 7+ passes. I know you already ran Memtest86+, but if you only did one pass, it's advisable to run it again using at least 7 passes.
CPU: Prime95 - Torture Test; Large FFTs; overnight (9+ hours). May wanna run it on Blend afterwards for another night.
Drives: Seatools - All basic tests aside from the Fix all or the advanced ones. For your SSD, instead of Seatools, use any diagnostic tools that are available from your SSD manufacturer.

All of these (excluding MemtestCL) are included in the UBCD if you prefer a Live CD environment (which is the best environment to test hardware on). Note that Prime95 currently does not work on the UBCD. Also, please provide us temps/voltages using HWInfo with Sensors only option checked. Log two 30-minute instances: one for idle, and one for high load.

Also, in addition to all this, make sure all device drivers are up to date. This also includes your BIOS, and your SSD drivers/firmware. SSDs have a relatively high rate of failure. A lot of the problems from them are fixed when you update your motherboard drivers, BIOS and especially the firmware on the SSD.