After a bit of digging I found that the driver doesn't work if Windows 10 is in hypervisor mode. Hypervisor mode can be checked if it's enabled by typing "systeminfo" in a command line/PowerShell window, it's enabled if it says in the end
Quote:
Hyper-V Requirements: A hypervisor has been detected. Features required for Hyper-V will not be displayed.
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and not something along the lines of
Quote:
Hyper-V Requirements:
VM Monitor Mode Extensions: Yes
Virtualization Enabled In Firmware: Yes
Second Level Address Translation: Yes
Data Execution Prevention Available: Yes
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The hypervisor mode is enabled if:
- Windows feature "Hyper-V Hypervisor" is turned on. It's ONLY that, not the whole "Hyper-V" category, e.g. the PS module and the required services for e.g. Optimize-VHD cmdlet to work don't put Windows in hypervisor mode
- Core isolation/HVCI security feature is enabled
- "Virtual Machine Platform" Windows feature is enabled, which is required for WSL2 to work, ie no WSL2 and ATI 600 USB driver can work at the same time
So the driver is compatible even with the latest Windows 10 21H1 (19043) but not if Windows is in Hypervisor mode, possibly the same applying to older Windows versions too