Code:
STOP 0x0000000A: IRQL_NOT_LESS_OR_EQUAL
Usual causes: Kernel mode driver, System Service, BIOS, Windows, Virus scanner,
Backup tool, compatibility
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7601.17944.amd64fre.win7sp1_gdr.120830-0333
Debug session time: Mon Nov 26 09:45:00.035 2012 (UTC + 6:00)
System Uptime: 0 days 2:26:08.682
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* Bugcheck Analysis *
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BugCheck A, {80, 2, 1, fffff80002e892ff}
Probably caused by : ntkrnlmp.exe ( nt!KeAcquireInStackQueuedSpinLock+5f ) Uninstall the following programs, they contribute in BSOD-s. Use the free version of Revo Uninstaller in Advanced Mode:
Code:
Start Menu\Programs\AVG 2011 Public:Start Menu\Programs\AVG 2011 Public
Start Menu\Programs\DAEMON Tools Lite Public:Start Menu\Programs\DAEMON Tools Lite Public
Start Menu\Programs\Sophos Public:Start Menu\Programs\Sophos Public
Start Menu\Programs\Sophos\Sophos Endpoint Security and Control Public:Start Menu\Programs\Sophos\Sophos Endpoint Security and Control Public
Start Menu\Programs\Spybot - Search & Destroy Public:Start Menu\Programs\Spybot - Search & Destroy Public
Daemon Tools
Please uninstall DAEMON Tools. It uses a driver called sptd.sys which is known to cause BSODs in Windows 7. Uninstall the software using Add/Remove Programs. Reboot the system. Once the program is uninstalled, run
sptd.sys uninstaller to remove the driver from your system.
As an alternative, many people recommend the use of
Total Mounter or
Magic ISO
Recommended antivirus program for Windows 7 based on stability compared to others:-

Do not start the free trial of Malware Bytes; remember to deselect that option when prompted.
Run a full scan with both (separately) once downloaded, installed and updated.
Run the System File Checker that scans the of all protected
Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
- Click on the

- Type CMD on Search
- Left click and Run as Administrator
- Type SFC /scannow
Full tutorial here:
Run Disk Check on your hard disk for file system errors and bad sectors on it:
Check for a newer BIOS version:
Code:
BIOS Version/Date American Megatrends Inc. 0605, 9/21/2009
Upload a screenshot of your hard disk using crystal disk info and Summary tab using Speccy:
Post back results.