If Driver Verifier doesn't give any blue screens, and you've got it set to verify ALL
3rd party drivers - then (presumably) there are no issues with the 3rd party drivers. Please don't forget to turn Driver Verifier OFF
That leaves either Windows problems or hardware problems. Hardware problems are by far the more common of the two - but there isn't much that you can do with the hardware on a laptop.
I'd suggest trying these 2 free diagnostic tests:
Try this free video stress test: FurMark: Graphics Card Stability and Stress Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net
- If you have more than one GPU, select Multi-GPU during setup
- In the Run mode box, select "Stability Test" and "Log GPU Temperature"
Click "Go" to start the test
- Run the test until the GPU temperature maxes out - or until you start having problems (whichever comes first).
- Click "Quit" to exit
Try this free stress test: Free Software - GIMPS
- extract the contents of the zip file to a location of your choice
- double click on the executable file
- select "Just stress testing"
- select the "Blend" test. If you've already run MemTest overnight you may want to run the "Small FFTs" test instead.
- "Number of torture test threads to run" should equal the number of CPU's times 2 (if you're using hyperthreading).
The easiest way to figure this out is to go to Task Manager...Performance tab - and see the number of boxes under CPU Usage History
Then run the test for 6 to 24 hours - or until you get errors (whichever comes first).
The Test selection box and the stress.txt file describes what components that the program stresses.
If the tests don't reveal any further problem, then the next step would be a clean installation of Windows:
- only install one free antivirus program.
- install all critical Windows Updates
- don't install optional updates unless the drivers are missing in Driver Management.
- don't install anything else and see if that fixes the problems.