[Fix] “failed to initialize authentication interface exiting” Half Life/Cs 1.6/Cry of Fear

failed to initialize authentication interface exiting error occurs in various valve games like Half Life, Cry of Fear and CS 1.6. If you get this error, then valve registry keys are corrupted. In this post, you’ll learn how to fix it.

Fix 1: Delete Corrupted Valve Registry

Follow the steps below:

  • Close Steam.
  • Open Windows regedit application (You can easily open it by pressing Windows + R keys together and typing regedit in it).
  • Firstly, navigate to HKEY_LOCAL_MACHINE > SOFTWARE > Wow6432Node and delete “valve” registry.
  • Secondly, navigate to HKEY_CURRENT_USER > SOFTWARE > Wow6432Node and do the same thing.
  • Close regedit window.
  • Restart your PC.
  • Launch Half Life, Cs 1.6, Cry of Fear or whatever you play.

Enjoy. I don’t think you’ll ever get “failed to initialize authentication interface exiting” error again 🙂

Don’t forget to thank me guys.

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