How to Fix OBS Recording Failures on USB Disconnect

If your OBS Studio recording abruptly stops or refuses to resume because an external USB drive temporarily disconnects, you are experiencing a common write-path interruption. This article explains why this conflict occurs and provides direct, actionable steps to resolve it, including configuring OBS to record to an internal drive first, adjusting Windows USB power management settings, and securing your physical hardware connections.

The most reliable way to prevent this issue is to avoid recording directly to an external USB drive. External drives are prone to micro-disconnects due to cable movement or power fluctuations. When OBS loses access to the file path for even a millisecond, the recording thread crashes.

  1. Open OBS Studio and go to Settings.
  2. Click on the Output tab in the left sidebar.
  3. Select the Recording tab at the top.
  4. Change the Recording Path to a folder on your computer’s internal storage (such as your local C: or D: SSD/HDD).
  5. Once your recording session is complete, manually transfer the finalized video file to your external USB drive.

Solution 2: Disable USB Selective Suspend

Windows often powers down USB ports automatically to save energy, which can cause temporary drive disconnections during recording.

  1. Open the Windows Start menu, type Edit Power Plan, and press Enter.
  2. Click on Change advanced power settings.
  3. Scroll down and expand USB settings, then expand USB selective suspend setting.
  4. Change the setting to Disabled for both “On battery” and “Plugged in”.
  5. Click Apply and then OK.

Solution 3: Adjust Device Manager Power Settings

Ensure your USB controllers do not go to sleep by adjusting their properties in the Device Manager.

  1. Right-click the Windows Start button and select Device Manager.
  2. Scroll down and expand the Universal Serial Bus controllers section.
  3. Right-click on your USB Root Hub (repeat this for all listed Hubs) and select Properties.
  4. Go to the Power Management tab.
  5. Uncheck the box that says Allow the computer to turn off this device to save power.
  6. Click OK to save the changes.

Solution 4: Optimize Hardware Connections

If the software settings are correct but the disconnects persist, the issue is likely physical.