AMD Ryzen 5 Redeon Graphics Fails After Windows 11 update

[STAMATIS APEIRANTHITIS]

Dear all good day.Recently i purchased a refurbished HP ProBook equipped with AMD Ryzen 5 4500U with Radeon Graphics 2.38 GHz.I installed Windows 11 and, unfortunately, performed all the proposed Windows and AMD BIOS updates.After that, the display card fails and the resolution can't be changed from 1024x768.I have tried to uninstall the graphic card driver and install the Windows conventional one with no success.I also tried to reinstall the AMD driver with no results. Right now, I almost can't use the PC. Any ideas???

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