Fusbhubsys 2021 -

Connected devices power on but display a yellow exclamation mark in Device Manager .

Understanding fusbhub.sys: The Core of USB Function Hub Architecture in Windows fusbhubsys

: An explicit error popup from your VDI client stating that the USB hub filter version is incompatible. Connected devices power on but display a yellow

If a standard uninstallation does not resolve the issue, the driver likely left orphaned configuration keys in the Windows Registry that continue to hijack your USB stack. fusbhubsys