Sounds like a driver issue of some sort... I think CTR is looking for some software or drive that it expects to be there, but it cant find it in your memory... i think... Try these troubleshooting steps: Are the following correct: AGESA version 1.2 on ryzen 5000, or is your ryzen 3000 / ryzen APU in the supported list? Is your BIOS up to date? Is your windows up to date? Do you have .NET Framework 4.8 or newer installed? While I believe CTR 2.0 doesnt need Ryzen Master, if the issue remains, try installing it then reboot and try again?