Hello,
This issue is probably related with registering filters in registry. To resolve this I would suggest to follow those steps:
1. Uninstall NoMachine
2. Reboot the machine
3. Check if “NoMachine USB Host Adapter” appears in device manager. If so, uninstall it.
4. Unregister “NoMachine USB Hub Filter”. To do that, you need to:
a) Open Windows registry: Menu start -> run -> regedit
b) Find the following registry key in the tree on the left:
“HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{36fc9e60-c465-11cf-8056-444553540000}”
c) Find UPPERFILTERS variable on the right side.
Note: it should contain list of registered filters, but maybe it’s empty if no filter is registered.
Edit UPPERFILTERS variable and remove entries containing nx prefix (e.g. “nxusbf”) if they exist.
5. Reboot the machine
6. Install NoMachine
I hope this will help you.
Regards.