I'm not advocating any brute force cracking, because it's a risky thing to use before you know anything about cracking tools.
https://www.windows10passwordreset.com/
https://pogostick.net/~pnh/ntpasswd/
but I've used them and they don't interfere with other devices.
The first time I solved this problem, I reinstalled new OS, and that was a painful lesson.
The second time I solved this problem, I used the boot disk.