Why does a blue screen appear when installing amd drivers?

Question

Video cards

I have a "hp pavilion g6-2302sr" laptop with two GPUs:
1) HD 7660G (CPU graphics);
2) HD 7670M (video card);

During the game, my fps started to drop, then the game crashed altogether, I started restarting the game, but artifacts began to appear while the game was loading, and then a blue screen with a "system_service_exception" error took off .
This error is related to a driver problem, well, of course, I started reinstalling windows 10 to fix all errors and others ... After reinstalling, Windows decided to find the drivers on the card and install it on its own, of course it found and installed everything, but the blue screen came out again with the same mistake. It is important to note that, after the blue screen, my windows does not start.because Windows says: They say everything is bad windows does not start, let's do a rollback. It is logical that it is impossible to roll back. Windows is new and there were no version saves in it. I started to start windows in safe mode to remove the video card drivers, after that my Windows started up, but instead of the video drivers, I was shown "Basic video adapter (Microsoft)" in the device manager. I, in turn, began to try to install drivers from the amd site (I downloaded from the official site), but I didn’t get a blue screen during the installation of the drivers with the same error that I wrote earlier. I also decided to try updating the drivers using the device manager, but the story itself also happened (the blue screen got out), I also tried installing drivers from the hp website for my laptop, but unfortunately nothing happened.
After all these procedures, I thought that the video card was old and most likely it was no longer compatible with windows 10, I decided to install windows 8.1, which was originally installed on my laptop. So I installed Windows and ran to download drivers, guess what happened? The blue screen got out again with the same error, the blue screen got out due to the fact that Windows decided to put drivers on my vidyuhu.
Then I started to do all the same actions as with windows 10, i.e. I started trying to install drivers from the amd site and from hp, as well as using the device manager, but again nothing worked, a blue screen also got out, then I realized that it was not the OS and I installed windows 10 back, after reinstalling Windows I deleted all the drivers associated with amd and in Windows I turned off automatic updates so that the drivers on the video card were not installed, but with such conditions it is not possible to play and watch videos, everything slows down too stylishly, and the game starts up for a very long time and gives out about 2 fps.
In general, I am inclined to believe that the video card is scorched or even burned out.

Ps: I currently have a second graphics processor, i.e. the processor processes the graphics.

Answer 1

It's a bad video card, unfortunately. Or overheating (did you change the thermal paste for a long time?)
The laptop is ancient, it makes little sense to repair. You can try to install firewood and disable the discrete card in the device manager so that the installation remains.

Answer 2

There may be a hub dump (also called the north bridge), but .. It is also possible that the BIOS remains old, and the video drivers are new, and thus, when operating from discrete video, the BIOS confuses something there or incorrectly indicates and there is a failure in the hardware department. Well, of course, one more detail is that when writing a new version of the BIOS to the BIOS microchip, there are cases of incorrect deletion of the old BIOS from the chip's memory. HP often sins with this.
So a normal service is needed with a soldering IR grill and a skilled craftsman for repairing and soldering BIOS chips and northbridges.