Unknown Administrator Password - Window 8

[Tefler]

Back in February, Beunchico and The Builder very kindly helped me gain access to a Vista computer left to a friend by his sister, who had passed away. She also had a Windows 8 computer, which has the same problem. The reason for the delay in asking this question is that I've been trying to find a charger that fits it. Now I have the charger, I've tried the same method as with Vista, but that doesn't work. Any ideas would be gratefully received.

[Tefler]

Sorry, I should have mentioned that Tony V was also involved in helping me with the former question. Thanks, Tony! Any ideas about this one?

[Buenchico]

This is meant to work with Windows 8:
http://pogostick.net/~pnh/ntpasswd/

[Tefler]

Thanks for the idea, Buenchico. I've given this one a go, but, unfortunately, as soon as it got to the point of actually doing anything with the password, it needed to be paid for. I was helping to help my friend out without expending any money - cheeky, I suppose. At least I'm confident this will work, if I do go for the paid-for version.
When I was working on the Vista computer, you suggested Livewire as a way to just remove the password, but that doesn't seem to work on this computer either.
If anybody has ideas of free software I could use for this, I'd be grateful for the suggestions.

[Tefler]

"I was hoping to help" is what I mean to say!

[Buenchico]

That's weird! It's always been free, with just 'donations invited' as the developer's policy (and even that is no longer in place).

Alternatives here:
https://www.passfab.com/windows-password/windows-password-recovery-tool.html
(Scroll down to 'Comparison' for pricing, where relevant but ignore the review for PassFab 4WinKey because that's what that page is really trying to advertise!)

[Tefler]

Thanks again, Buenchico, but again I got to the place where I could reset the password and got the message: 'This is the demo version. If you really want to reset the password, go to …..' So it isn't free software anymore, I'm afraid.