Blue Screen error BAD_POOL_CALLER 0x000000C2

When I was getting bsod's like these it turned out to be a faulty memory module. Have you tried running Memtest86?

"You're experiencing the problem due to several reasons- such as corrupt OS files, recent hardware changes, incorrect system settings, corrupt cache contents and other reasons. Repair your system files through System File Checker tool, disconnect recently connected hardware, revert-back newly applied system settings and delete temporary files and cache contents.

Download Hotfix and check if the problem still persists. Alternatively, perform manual steps given below until your problem is completely fixed. The actual steps are given below:

Step 1: Repair System Files

Insert Windows OS installation disc.
Click the Start button, point to All Programs | Accessories.
Right click Command Prompt, choose Run as administrator.
Type the following command-
SFC /SCANNOW
Press ENTER.
Reboot your PC when you're done.

Step 2: Disconnect Recently Installed Hardware

Disconnect any recently installed hardware devices. Check for ""Compatible for Windows"" logo on the hardware package.

Step 3: Delete Cache Contents

Click Start, point to All Programs | Accessories.
Select Disk CleanUp.
Select a disk drive, click OK.

Step 4: Restore Recent Settings

Click Start, point to All Programs | Accessories.
Select System Restore.
Click Next, follow the on-screen wizard."