This is a keeper for me, though I hope the ISO will just sit in a folder on the hard drive unused, well, forever. ;) The program's folder, once installed [using a pre-registered, regular setup file] includes a burning utility & the ISO. The ISO is all I care about, since Rufus can use it to make a bootable USB stick. In fact, I prefer just the ISO because it can be used with Rufus -- this very handy app lets you set boot parameters, and there are more than likely settings that will work for all of your devices, unlike the vast majority of bootable USB sticks various apps create.
To test 4WinKey Standard's ISO I set a win7 VM to boot from it, and it seemed to work fine. Will it work in all cases? I don't know, but at 1.5MB there's no reason not to store the ISO forever just in case.
For alternatives, Google & there are apps that make brute force attacks on Windows passwords, or if it's win8 or 10, if you log in with a Microsoft account you can reset the password that way.
rufus[.]akeo[.]ie/
support[.]microsoft[.]com/en-us/help/4026971/microsoft-account-how-to-reset-your-password
lifewire[.]com/ways-to-find-lost-windows-passwords-2626122