: Fully exit Steam and SteamVR, then right-click your Steam shortcut and select Run as Administrator . Many users find this resolves the detection failure immediately. Enable Direct Display Mode : Open SteamVR and navigate to the Settings menu. Select the Developer or Developer Settings tab.
: Steam VR may fail if installed on a secondary drive (e.g., D:). Reinstalling it to your primary C: drive has been reported as a fix for persistent errors. Steamvr Error 475
If you have access to a second gaming PC, test the headset there. This tells you if the problem is with your headset/cable or your main PC. : Fully exit Steam and SteamVR, then right-click