Call Of Duty Exe Err Mss Init Failed 150 [repack] Jun 2026

Windows security features often restrict legacy applications from accessing local system libraries or registry folders, generating initialization blocks. Navigate to your Call of Duty root installation directory.

Run the game and launcher as administrator Call of duty exe err mss init failed 150

: The classic Call of Duty engine will crash silently or throw an MSS init failure if it detects that no speakers, headphones, or microphones are plugged into the system. To avoid encountering the "Call of Duty exe

To avoid encountering the "Call of Duty exe err mss init failed 150" error, players are advised to: Open and navigate to your Library

Click the gear icon next to the Play button → Scan and Repair . 3. Update or Reinstall Audio Drivers

If you bought Call of Duty through a digital storefront like Steam, your launcher can automatically scanning and replacing broken sound libraries. Open and navigate to your Library .