If the preliminary checks didn't help, proceed with the following methods in order.
It is possible this is a misspelling or a very niche file. Based on similar common Windows DLL errors, here are a few possibilities: Microsoft Visual C++ Redistributable : Many DLL errors (like msvcp140.dll ) are fixed by installing the latest Microsoft Visual C++ Redistributable from the official Microsoft Support site Malware or Adware mdivwctldll fix
Sometimes, malware disguises itself as system files. If mdivwctldll is actually a virus trying to execute, Windows might block it, resulting in an error. Run a full scan with Windows Defender or your preferred antivirus software. If the preliminary checks didn't help, proceed with
If the error started right after you installed an antivirus or cleaned up your drive: If the preliminary checks didn't help