If the file was deleted or corrupted by a Windows update or a disk error, the built-in Windows System File Checker can replace it with a cached copy.
You might be tempted to search Google for "eutil.dll download." Many third-party DLL repositories: eutil.dll download
The "fix" is rarely a new download—it's usually just telling your antivirus to leave the file alone. If the file was deleted or corrupted by