Download and install a reputable, clean codec bundle such as the K-Lite Codec Pack. This overwrites broken registry entries linked to older 2013-era formats.
Based on available technical archives, the term is most frequently linked to: Vulnerability Remediation xxxvdo2013 fix
If this error targets a specific editing software, game, or media player released around or after 2013, the software itself may require a patch. Visit the developer's official website. Download and install a reputable, clean codec bundle