When I opened up my laptop after few days, I could see red vertical lines on my login window, and the PC hanged. I tried restarting and booting up many times but nothing helped.
I cleaned my laptop and tested the RAM and HDD. Both test were successful. The fan heated up too much, but is now clean, and hence the fan runs OK.
I then reformated my PC with an HP OEM CD (as I have an HP laptop). I restored it to the original factory settings.
The factory settings (restoration) completed OK. When the computer said "Preparing computer for your first use" again those red lines were still visible on those text.
33 Answers
It could be your GPU has been damaged by the excessive heat you mention. Vertical / Horizontal lines are a common sign of a failing GPU.
If your Laptop is in warranty I recommend speaking to your reseller and telling them the problem.
On a side note even if it is outside warranty it may be worth checking if it is a known problem with your Laptop as often manufacturers will replace these parts even outside their original warranty.
Another way to diagnose the problem as GPU related is to plug in an external monitor and see if you can reproduce the same error. If you do then it is most likely the GPU that is failing.
3To me this sounds like a problem in display circuitry, not graphics card. In laptop both are within the same enclosure, but artifacts like this would mean replacing the monitor on desktop. So most likely the only thing you can do is to prepare to replace the laptop.
Your laptop lid got too much pressure and now the lcd feeder is a bit bruised. You can fix this, see youtube:
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