Windows can’t find the ".bat" files

Hello,

I’ve recently started having a small problem: all my files with the ".bat" extension no longer open and the following message appears:

Windows can’t find 'C:\...........\fichier.bat'. Make sure you’ve typed the name correctly, and try again.

First I checked whether the name was correct, and it was. I then searched on many forums, but nothing worked.

Thanks in advance for your help!