PowerRename

Power Rename:

Add Prefix / Suffix:

You can accomplish this by checking the “Use regular expressions” option.

Search for “^” (without the quotes), which matches the beginning of the filename, to add a prefix.

Search for “$” (without the quotes), which matches the end of the filename, to add a suffix.

https://www.rexegg.com/regex-quickstart.php

https://learn.microsoft.com/en-us/windows/powertoys/powerrename