HP Pavilion g6 2250ej - legacy black screen and AMD drivers on Windows 10

[Mishel_Dedi]

Hello everyone! 

First of all I want to thank anyone in advance who is willing to help me in this great forum!

(sorry about my bad English)

i have 2 problems in my laptop. HP Pavilion g6 2250ej. 

( i had windows 10 x 64 on legacy mode in the bios, the legacy and uefi were on)

and everything was great until on day that i played a game,and my laptop froze and nothing worked, i just saw the picture of the game on my screen so I turned off the laptop and tried to turn it on again and nothing happened.

so I took the main battery out and the bios battery out to reset the bios hopefully that it will fix the problem.

now it fixed the problem but now every time I turn legacy mode on and exiting bios, my laptop just showing me a black screen. the fan is working but the light of the wifi isnt white now its orange. 

so again I took the main battery out and the bios battery out to reset the bios and installed windows 10 x64 on uefi mode in the bios. everything is working great except from the AMD readon drivers. i cant install them. when i install them, the screen is black and the laptop restart itself and its not installing.

in the device manager im getting:

This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)

The driver trying to start is not the same as the driver for the POSTed display adapter.

and sometimes its code 43 stop working because of a problem and its always change between them.

problem 1:

why cant I install AMD drives? its because its working on uefi mode? Im very frustrated because I tried everything to install it, manually too.

problem 2: 

why cant i turn legacy mode on in the bios? its not that important because i just need a windows i dont really care if its on legacy or uefi, but when it was on legacy i didnt have any problem on AMD drivers at all.

can someone help?

thank you 

Mishel Dedi.

[WAWood]

@Mishel_Dedi 

First off, the password is totally unrelated to the CMOS batteries on laptops, so removing the battery is a waste of time.

Second, modern laptops with win10 preloaded come in UEFI/GPT mode -- if you change that to Legacy mode, the laptop might boot but it won't load Windows properly because that was installed in UEFI/GPT mode at the factory.

[Mishel_Dedi]

@WAWood

first of all thank you very much for the quick answer!! 

i bought my laptop in 2013 or 2014 and it had windows 7 x64 on it, in 2019 i changed it to windows 10 x64. 

everything was fine until the laptop froze and forced me to do a bios reset.

I dont know what to do because i cant use my gpu right, onli with the windows 10 basic driver.

thanks again!! you know why i cant turn on legacy mode? or why i cant install the AMD drivers?