Hello guys, so i recently bought a used RX 550 from my local community, and I installed it with latest graphic driver 18.9.3 but my computer displayed error code 43 in device manager.
I downloaded GPU-Z and it read my graphic card. But my graphic card won't work. And Also when I installed older driver the message change from "No AMD Graphic Driver Installed" to "Radeon Setting Currently unavailable. Please Try again after connecting AMD graphics." I've already browsed the forum and try Uninstall with DDU and clean install several times but nothing changed. I already updated the bios to the latest version but nothing happened too. I also found a tip that deleting driver version in registry editor would make change but it doesn't work in my computer. I'm so frustrated please help me out. Thank You.
My Setup
Motherboard : ASUS H61M-C
Processor : Intel G850 2.9 GHz
RAM : 4GB
Graphic Card : Sapphire RX 550 GDDR5 4GB
PSU : Corsair VS450
OS : Windows 7 Ultimate SP1 64bit
PS : I'm using HDMI to VGA converter because I don't have monitor that support HDMI
