Hi, I am extremely computer illiterate...I created an admin account years ago (when my teenage daughter was annoying me) We NEVER restart the computer and hence haven't had to input it in some time.  Some update a few months ago insisted I restart computer and when I did...I had forgotten the admin password. Fiddled and rang around and desperately tried to get in (have old school dos knowledge). 

Eventually, cheapest quote was $35 from computer repairers down street from me to fix problem. 
 Paid the money, about 15 mins there all up,  came home, set up, again, could not get in as password wanted. Rang them and they advised to being back down.  I made it clear to these fellas from the start I knew very very little about computer tech or software originally. When I returned, the other fella helped me and said it was going to take a bit longer and he had to drop his child somewhere etc and I had to leave it overnight.  When I returned, imagine my surprise when he wanted another $40.  I was upset but paid and they promised I'd never have that problem again.........................
Recently tried to install some Microsoft family safety controls created a new account (without passwords for parents and children), can't remember if I had to restart computer but the old Family profile returned wanting the old password. I rang this computer company and explained issue and was told I've re-enacted to old password somehow from encrypted or hidden files....??????????????? I said I'd like to bring it back in for them to delete or do whatever they did last time password and that I would expect them to do that at no charge because of prior advice and payment to them. 

Well, the fella said he would have a quick look at it but they would have to charge something!  

I'm furious as the local PC shop was only going to charge $50 plus guarantee etc and these blokes undercut them as they are now working from home and then made me pay again anyway.

Is there anyway to resolve this without paying any more money out?  Thanks in advance for any help you can offer.

P.S. It is now the only admin profile or the only one that needs a password that I don't know and I cannot seem to make any change or even uninstall family safety stuff.