Scroll down until you find the option.
Note : If it is already enabled, click , let it restart, and then re-enable it to refresh the drivers. 2. Purge and Reinitialize USB Drivers
This was a lifesaving fix for many users: Steamvr Error 475
Your graphics card drivers are failing to communicate with the VR display pipeline.
The calibration drone of the Odysseus One spiraled lazily through the habitat module, its optical sensor blinking amber. Jax watched it from his crash-couch, the neural lace at the base of his skull itching like a forgotten dream. Scroll down until you find the option
This is particularly useful if you’ve previously used different VR software (like Pico Connect, WMR, or Rift). The uninstaller may leave behind orphaned driver entries that trigger Error 475.
Here are the most reliable methods to fix Error 475, ranked from simplest to most advanced. 1. Run Steam as an Administrator (High Success Rate) Purge and Reinitialize USB Drivers This was a
Windows can occasionally misidentify VR headsets as generic USB devices, blocking the SteamVR handshake. You can force Windows to rediscover the headset using SteamVR's built-in developer tools. Open on your desktop.
Plug everything back in, power on your PC, and launch SteamVR. 2. Resolve USB Port and Bandwidth Conflicts