What happens if I delete a BAK file?

Is it safe to delete a .BAK file?

bak files to use up unnecessary disk space. Will anything go wrong if I delete them all routinely? No. They are fully self contained.

Do you need bak files?

A file with the BAK file extension is a backup file. This file type is used by many different applications, all for the same purpose: to store a copy of one or more files for backup purposes. Most BAK files are created automatically by a program that needs to store a backup.

How do I delete a .BAK file?

I just use Windows File Explorer and do a search for *. bak, then delete them.

What does a BAK file do?

bak" is a filename extension commonly used to signify a backup copy of a file. When a program is about to overwrite an existing file (for example, when the user saves the document they are working on), the program may first make a copy of the existing file, with . bak appended to the filename.