I would like to modify an .inf file located here:

but windows don't let me do it. Pretexting that I don't have enough rights to do it.

I tried with the super administrator trick:

activating administrator account into the computer management settings
logging with the administrator account
trying to modify the file.

When trying to add modification rights to the folder the error is still the same; insufficient privileges.

The terms are maybe not the same for you as my windows is in french.