If the file is present in your folder but the game still claims it is missing, you can manually force Windows to register the file into its system registry.
If you are using a copy of FIFA 14 (cracked, repack, No-DVD patch), the core_activation.dll error often appears because: how to fix core activationdll in fifa 14 install
This clears temporary glitches that might prevent DLL loading. If the file is present in your folder
Go to the tab, check Hide all Microsoft services , and click Disable all . Go to the Startup tab and click Open Task Manager . Disable all startup items. Restart your PC, then try installing FIFA 14 again. Method 3: Run in Compatibility Mode Go to the Startup tab and click Open Task Manager
Before reinstalling or restoring the file, you must tell your operating system not to delete it again.
This issue is almost always caused by that block or delete the DLL. Below are the most effective fixes.
Did this error happen or after an antivirus scan ?