Steam: Error 15 - how to fix the error

Steam Error 15 says little about the actual error and the cause. In this practical tip, we have troubleshooting tips for you.

Fix Error 15 on Steam

If you get an "Error 15" error in Steam, it means that Steam has encountered problems with the game files.

• These can be incomplete or incorrect, which is why the game cannot be started.
• Then right click on the affected game in Steam and select "Delete Local Files".
• You then have to download and install the game again.
• Make sure that your internet connection remains constant during the download and that the download is not aborted.
• After downloading all the data, you need to install the game as usual. Afterwards it should start as usual.
• Contact the manufacturer of the game and describe the error if it is not. This is the best way to help you.