: Remove any traces of the old Origin client from your Control Panel.
If files are missing or the installation path is broken, the launcher may think it isn't installed. origin is not installed fifa 21
For the EA app, use the tool found in the EA App Help menu to clear the cache automatically. Origin - Download : Remove any traces of the old Origin
As of late 2023, EA has been phasing out Origin in favor of the new . The "Origin is not installed" error often appears when EA servers try to force-migrate you. Origin - Download As of late 2023, EA
If you are still stuck, your Windows user account may have corrupted permissions. Create a new local Windows administrator account, log into it, install Origin there, and you will likely find FIFA 21 runs without issue.
Corrupted temporary files often lead to software detection issues. three lines (menu) in the top-left corner. App Recovery Clear Cache