The best software we found to recover your lost password in Windows 10 is Lavesoft,
free for non commercial use. You download it to a USB drive which is made bootable in the download. The trick then is to get the computer to boot up from the uSB drive. Here are the steps...
Go into the BIOS (How? depends on your computer...power and then escape key does it for my HP)
then choose the System Configuration tab.
Go down to Boot Opetions
Enable Legacy Support.
Plug the usb flashdrive into one of the usb ports.
Press the F10 key to save the changes and exit.
Now press the F9 key to select the first boot option.
You should see the usb drive as one of the options if it is actually a bootable flash drive.