This registry key cannot be deleted (rebuilds on reboot).ĭevice Manager lists under System devices the item AMDRyzenMaster Device with Driver version 1.5.0.0 and the Service AMDRyzenMasterDriverV15 this relates to a registry key 'AMDRyzenMasterDriverV15' which calls an ImagePath to folder '\SystemRoot\system32\DRIVERS\' which contains a file AMDRyzenMasterDriver.sys version 1.5.0.0 size 68,2 KB. The corresponding registry key 'AMDRyzenMasterDriver' calls an ImagePath to folder '\?\C:\Program Files\AMD\Performance Profile Client\' which also contains a file AMDRyzenMasterDriver.sys version 1.9.0.0 size 42,3 KB. The AMDRyzenMaster application (version 2.) installs in folder 'C:\Program Files\AMD\RyzenMaster\bin\' it contains the file AMDRyzenMasterDriver.sys version 1.9.0.0 size 42,3 KB. I did some additional analysis as outlined below. In effect, this device is now missing: how can I recover this entry in Device Manager or is it not necessary? Any clarification how to correct (or ignore) would be appreciated.
However, I also noticed that in Device Manager > System Devices the device listed under 'AMD RyzenMaster Device' (if I recall correctly) was showing troubles (triangle/exclamation mark, error 19 with reference to a wrong registry entry) and I decided to uninstall it assuming it would be re-established after another uninstall/reinstall of AMD Ryzen Master however, it did not also not with a scan for new hardware (and is also not hidden). Apparently these are automatically generated upon restart and/or reinstallation and the one does not go without the other and AMD Ryzen Master now works fine. I deleted the key in registry (suggestion that I found on many places) and that did not work until I amended the key by deleting "\?\" with which the ImagePath started uninstalling and installing AMD Ryzen Master in the end leaves me with two almost identical registry keys (both with an ImagePath starting with "\?\") one 'AMDRyzenMasterDriver' and one 'AMDRyzenMasterDriverV19'.
Unfortunately this also resulted in the very same "Ryzen Master not installed properly. After an unsuccessful update of AMD Ryzen Master I decided to uninstall it and go for a clean install (2.).
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