u/ElderberrySame4370

3-day ago I install a 10 years old 500gb hard disk . It has windows 7 on it. I have a main SSD 256gb lexer SSD . After installing the 500gb hard disk I didn't face any problem I downloaded cs2 on it it's working very well. Then I'm giving a 100 gb partition on it then suddenly the elastic gone. After that I didn't start my PC with my 256 gb SSD . I started the pc with my friend 500 gb SSD (it's the same brand I use) . After that I on PC with my 256 gb SSD everytime it on it's stuck on Bios. I did everything what YouTube says. But if I on the pc with my friend SSD it's work but mine is not.

Can anyone tell me what happened

My motherboard is MSI B450M A promax ll