To resolve the 'Word cannot open the existing file (Normal.dotm)' error, reset the Normal.dotm file, use Open and Repair, and disable add-ins.

There are instances where users reports getting an error “File is open in COM surrogate” when trying to access or rename and edit a file on Windows Properties.

A bad sector, corrupt files, incorrect file execution policies, and others are considered to be the primary cause of File System Errors. The error message is usually ...

If you run into a "Content File Locked" error while using Steam, don't despair, it should be fixable. Here are some potential solutions to try out.