Update or reinstall the parent application. Use Process Explorer to find which process loaded the DLL.
To understand why ces x64frev exists, one must understand Patch Guard. ces x64frev
Disclaimer: This article is based on technical inference and general troubleshooting methodologies. Always back up data before performing system-wide searches or modifications. Update or reinstall the parent application
Finally, consider documenting your discovery. If you find a legitimate file named ces_x64frev.sys or ces x64frev.dll , upload it to a public sample repository (with proper permissions) so that future search results improve for others. ces x64frev