: Move your headset's USB cable to a different port. If you are using a USB 3.0 port, try a USB 2.0 port, or vice versa, to rule out chipset compatibility issues.
: In the SteamVR status window, go to Menu > Developer > Developer Settings > Remove All SteamVR USB Devices . This clears old driver data; reconnect your headset afterward to reinstall clean drivers. Additional Software Considerations Steamvr Error 475
Users have reported that installing SteamVR on a secondary drive (like D: or E:) can lead to pathing errors that trigger Error 475. : Move or reinstall SteamVR. : Move your headset's USB cable to a different port