Hi,
I have exactly the same problem as you with new Store Mi drivers 2.1.0.218
I have a Ryzen 5950x cpu and a X570 chipset on Windows 11. Everything was fine with previous drivers.
As it is advised from AMD, I uninstalled previous Store Mi version driver.
When I try to install new 2.1.0.218 version, installation failed with error code 65536, and I can notice in log this error :
" Property(S): IS_PREVENT_DOWNGRADE_EXIT = A newer version of this application is already installed on this computer. If you wish to install this version, please uninstall the newer version first. Click OK to exit the wizard.
While previous version is well uninstalled. I tried as I saw on several forums to delete the Store Mi folder in Programmes\AMD with no success and same error message.
Please, help !
Many thanks