Hello, I've been struggling with this problem for about six months, but I still can't find a solution. I tell you: when installing ANY version of the driver on the RX 6600 XT graphics card, the computer simply refuses to work. After installing the driver, it is necessary to restart the computer, but after restarting the computer does not launch applications from autorun, and then does not run any programs at all. It also does not work to turn off the computer through the start menu. Only rolling back the system through the restore point helps. I hope for your support.
