Random BSOD, Win 7 64bit

Hi,

I am new to these forums, but after looking through the archives it seems like a great place!

I'm having three main problems, and I'm not sure if they are related to one another or not. Also, my system was running stable with Win 7 64bit for a few months before these problems started occurring. I've scanned my computer with multiple virus programs and can't find anything from that.

Problem 1- Random BSOD's
These typically occur when the computer seems to be a little more stressed, but its not too strenuous. For instance, it will occur when streaming video with a program like Word open, or using Google Earth.

I've attached the mini-dump files for the previous three crashes.

Using WhoCrashed, it always comes up with the same error; This was likely caused by the following module: ntoskrnl.exe
Bugcheck code: 0xA (0x0, 0x2, 0x0, 0xFFFFF80002CEB217)
Error: IRQL_NOT_LESS_OR_EQUAL
Dump file: C:\Windows\Minidump\020810-23025-01.dmp
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
The crash took place in a standard Microsoft module. Your system configuration may be incorrect, possibly the culprit may be another driver on your system which cannot be identified at this time.

I've run Memtest86 and not found any errors.

Problem 2- Matshita DVD-Ram
Often problem 1 happens when this issue is present. My DVD drive will not function from bootup. A warning icon is present under device manager, and I have the following error message;
"Matshita DVD-RAM UJ862A, Windows cannot use this hardware because it has been prepared for "safe removal", but it has not been removed from the computer. (code 47)
To fix this problem, unplug the device from your computer and then plug it in again".

Removing the drive and the reinserting it does not solve the problem. Also, when this happens I cannot connect any bluetooth devices, and my 3G modem will not be recognized.

I've tried to update the driver, but Windows says that it is up to date. Running troubleshooting doesn't come up with anything either.

This problem is not consistent. I goes days without it occurring, and then it will happen three times in a row. This issue also leads to problem 3.

Problem 3- Windows won't shut down
When problem 2 occurs, the only solution I've found is to reboot. However, Window's just sits at the 'Shutting Down' screen for 15-20 minutes, until I get a BSOD. When this happens I usually just force a hard shut down rather than wait for the BSOD.

I don't know if these issues are related at all, or if anyone can help me sort them out at all. I will greatly appreciate any assistance.

I would suggest that you disable Driver Verifier as the first order of business.
An initial posting with 3 Driver Verifier enabled memory dumps just doesn't tell us a lot.

We would have to know what settings that you used on which drivers.
We would also have to see the memory dump files that caused you to use Driver Verifier in the first place.

If you don't have all of this, please turn off Driver Verifier and post back with the next, non-verifier enabled memory dump.