BSOD while playing Dota 2

sfc is clean now, and I just installed the video drivers. I'll keep my fingers crossed so that this whole thing is fixed already.
ps: thanks for your help

That's good, the corrupted files have been repaired and the drivers have been updated, leave this thread open for about a week, and then report back any changes or if the problem has been resolved.

Well, it came back after all, got a bsod while watching a video.

Code:

BugCheck 3D, {fffff80000b9bfa0, 0, 0, fffff800030a45f5}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+6a6f )

The dump files are not revealing much information, it's best to follow these steps:

Install Windows Updates (Important and Optional):

Start > Type: Windows Update > Check for Updates > Install Updates

Windows Updates provide many stability and security improvements for your operating system.

Run Driver Verifier to scan for any corrupted drivers which may be causing problems, this program works by running various stress tests on drivers, in order to produce a BSOD which will locate the driver; run for least 24 hours:

• Driver Verifier - Enable and Disable

Additional Help - Using Driver Verifier to identify issues with Drivers

There was one update to install, I'm also running driver verifier as of now. Hope we can grasp what's going on here.
ps: Thanks for your help all along

This was fast, I got the system to crash playing skyrim, here's the zip as usual

Code:

BugCheck C4, {81, fffffa800fd5bdd0, 8a, 0}

*** WARNING: Unable to verify timestamp for mcdbus.sys
*** ERROR: Module load completed but symbols could not be loaded for mcdbus.sys
Probably caused by : mcdbus.sys ( mcdbus+36823 )

Code:

4: kd> lmvm mcdbus
start             end                 module name
fffff880`03fa9000 fffff880`03fe5880   mcdbus   T (no symbols)           
    Loaded symbol image file: mcdbus.sys
    Image path: \SystemRoot\system32\DRIVERS\mcdbus.sys
    Image name: mcdbus.sys
    Timestamp:        Tue Feb 24 10:34:07 2009 (49A3CD1F)
    CheckSum:         00041E84
    ImageSize:        0003C880
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

The dump file indicates that MagicISO SCSI Host Controller driver is causing some problems (Driver Reference Table)

Remove:

Code:

Start Menu\Programs\MagicISO

Just removed it. Should I run Driver Verifier again to see if anything else is amiss?

Disable Driver Verifier for now, and just use your system as you normally would. If any more BSODs occur which do not indicate a exact cause, then we can start running it again.

Got another bsod just now (again, while playing)