1. Enable UEFI and secure boot in Bios 2. Install win 10 64 bit Download link to Windows 10 Disc Image (ISO File) German site https://www.microsoft.com/de-de/software-download/windows10ISO or English site https://www.microsoft.com/en-us/software-download/windows10ISO (Please google how to instal ISO if you do not know) 3. Install Drivers and Software Windows 10 - 64-Bit Edition 2021.20 AMD Embedded V-Series APU R-Series APU Windows® 64-bit Catalyst™ Driver – Supported OS: Windows® 10 RS5 and 21H1 64-bit WHQL Certified Criver https://www.amd.com/en/support/embe...rocessors/v-series-v1000-radeon-vega-graphics 4. Download Link to Windows 11 Disk Image (ISO) https://www.microsoft.com/software-download/windows11 (5. You may download and run "WindowsPCHealthCheckSetup.msi" somewhere. You will notice that the Processor AMD Ryzon Embedded V1605B with Radeon Vega Gfx is not supported.) 6. Needed Registry Key entry German site https://support.microsoft.com/de-de...ndows-11-e0edbbfb-cfc5-4011-868b-2ce77ac7c70e English site https://support.microsoft.com/en-us...ndows-11-e0edbbfb-cfc5-4011-868b-2ce77ac7c70e see " ... Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\Setup\MoSetup Name: AllowUpgradesWithUnsupportedTPMOrCPU Type: REG_DWORD Value: 1 ... Modify the registry at your own risk. " You have to open "regedit" with admin permissions !!! 7. Start "setup.exe" of Win 11 ISO File You have to mount the ISO file to do that. 8. Last but not least Drivers and Software Windows 11 - 64-Bit Edition AMD Chipset Drivers Revision Number 3.10.08.506 File Size 53 MB Veröffentlichungsdatum 21.10.2021 https://www.amd.com/de/support/chipsets/socket-fp5-mobile/amd-ryzen-and-athlon-mobile-chipset Two days work of try and error. I hope that I was able to reproduce my path correctly. Please tell me how it worked for you. Windows is still not activated, I would like to say that activation is not necessary for installation, you can do it later when you know everything is working. Have fun!