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Windows 7: BSOD Out of Nowhere; Could be Browsing; Word Processing; ETC

26 Oct 2012   #1

Windows 7 Home Premium 64bit
BSOD Out of Nowhere; Could be Browsing; Word Processing; ETC

My Laptop would just freeze or BSOD while doing basic computer work. No specific applications. I could just be browsing Chrome and suddenly BSOD or freeze.

I have attached SF Diagnostic...

thank you.

My System SpecsSystem Spec
26 Oct 2012   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit


Remove Daemon Tools, sptd.sys is known to cause BSODs! Please uninstall it.
Start Menu\Programs\DAEMON Tools Pro	Public:Start Menu\Programs\DAEMON Tools Pro	Public
The two most recent dmps come with Bug check A and 7F.

Usual causes:  Kernel mode driver, System Service, BIOS, Windows, Virus scanner, 
Backup tool, compatibility
BugCheck A, {20000000, 2, 0, fffff800030e0a82}
Probably caused by : ntkrnlmp.exe ( nt!KiProcessExpiredTimerList+72 )
Usual causes:  Memory corruption, Hardware (memory in particular), Overclocking failure, 
Installing a faulty or mismatched hardware (especially memory) or a failure after
installing it, 3rd party firewall, Device drivers, SCSI/network/BIOS updates needed, 
Improperly seated cards, Incompatible storage devices, Overclocking, Virus scanner, 
Backup tool, Bad motherboard, Missing Service Pack
BugCheck 7F, {8, 80050033, 6f8, fffff8000309158f}
Probably caused by : ntkrnlmp.exe ( nt!KiDoubleFaultAbort+b2 )
Start Menu\Programs\avast! Free Antivirus	Public:Start Menu\Programs\avast! Free Antivirus	Public
Uninstall Avast! antivirus, it's known to contribute in BSODs. Replace with MSE at least to test. Also uninstall any third party firewall and back up tools if you have them.

Recommended antivirus program for Windows 7 based on stability compared to others:- Run a full scan with both (separately) once downloaded, installed and updated.

Driver	c:\windows\system32\drivers\atikmdag.sys (, 5.76 MB (6,037,504 bytes), 8/18/2009 3:48 AM)
Update to the latest drivers for your graphics card but first uninstall them from the control panel. Click on the Start ► Control Panel ► Programs ► Uninstall a program ► Uninstall everything related to ATI. Delete remnants of driver using Driver Sweeper. Download the latest version from the AMD website OR from device manager OR from reliable source like

Look for an update on your BIOS version:
BIOS Version/Date	Hewlett-Packard F.25, 7/10/2009
Free up your start-up, keep nothing except the antivirus.
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:
Run Disk Check on your hard disk for file system errors and bad sectors on it:
See if the stability of your system returns.

If not, go ahead with Memtest86+

Take memtest. Run for 8 passes and test each stick in a know good slot for an additional 6 passes.
The goal is to test all the RAM sticks and all the motherboard slots.

Check your motherboard manual to ensure the RAM sticks are in the recommended motherboard slots. Some motherboards have very specific slots required for the number of RAM sticks installed.

If you get errors, stop the test and continue with the next step.

1. Remove all but one stick of RAM from your computer (this will be RAM stick #1), and run Memtest86 again, for 7 passes.
Be sure to note the RAM stick, use a piece of tape with a number, and note the motherboard slot.
If this stick passes the test then go to step #3.

2. If RAM stick #1 has errors, repeat the test with RAM stick #2 in the same motherboard slot.
If RAM stick #2 passes, this indicates that RAM stick #1 may be bad. If you want to be absolutely sure, re-test RAM stick #1 in another known good slot.
If RAM stick #2 has errors, this indicates another possible bad RAM stick, a possible motherboard slot failure or inadequate settings.
3. Test the next stick of RAM (stick #2) in the next motherboard slot.
If this RAM stick has errors repeat step #2 using a known good stick if possible, or another stick.
If this RAM stick has no errors and both sticks failed in slot#1, test RAM stick #1 in this slot.
4. If you find a stick that passes the test, test it in all the other motherboard slots.

If Part 2 testing shows errors, and all tests in Part 3 show errors, you will need to test the RAM sticks in another computer and/or test other RAM in your computer to identify the problem.

In this way, you can identify whether it is a bad stick of RAM, a bad motherboard, or incompatibility between the sticks.
Let us know the results
My System SpecsSystem Spec

 BSOD Out of Nowhere; Could be Browsing; Word Processing; ETC

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