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MTA:SA launcher code

MTA:SA error CL10

GTA is already running.

How to fix it

  1. Close the game that is still open

    Look on the taskbar for an open MTA or GTA window and close it. Wait until it has finished closing before you start the game again.

    Source: MTA wiki

  2. End a stuck game in Task Manager

    Only if the game’s window is gone but the game did not finish closing.

    Open Task Manager, find the MTA or GTA process that is still there and end it. Do not end Windows processes that have nothing to do with the game.

    Careful: Ending a game this way loses anything in that session that was not saved.

    Source: MTA wiki

  3. Restart Windows if it will not close

    Save your other work and restart Windows. Then start MTA only once, from the installed launcher.

    Source: MTA wiki

These are the steps of the guide Another MTA or GTA instance is already running.

Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.

About this code

CL codes come from MTA's launcher, before the game starts: installing an update, finding GTA, loading MTA's own files or starting gta_sa.exe. MTA's own documentation gives CL10 as GTA already running.

Where this comes from

Read on 5 September 2026 and written in our own words here.