I can't login to my user made administrator account, help!

Hi guys, I had only one user account on my computer up until a few days when I decided to make a user account separately for my younger brother so I could put parental controls on it. My one was an administrator and the new one was just a standard one.

However, on the Welcome screen I can only see user account for my little brother's account XXX and then another option Other User. I filled in my account details username and password but it said "the user name or password is incorrect". However if I go on to my little brother's account and do something that requires the password of an administrator, the password works fine. So I put in the password in the User Accounts panel of the control panel and removed the password from the administrator account hoping I could restart the computer and it would instantly log me in to my own account. However, I still only see my little brother's account on the welcome screen and "Other users". What's worse is that whenever I try to do something which requires the admin password, since I removed the password it says "The user's password must be changed before logging on the first time". So now can I not only log in to my own account, I can't even do things that require the admin password.

The system administrator account has not been enabled so it doesn't work when I try to log in with it.

I've tried to use password reset disks/USBs but neither have worked, I just get a black screen with blinking at the top left if I try to boot my PC using them.

Has anybody got any suggestions?

EDIT: Sorry if this is the wrong section to post in, I didn't know where else to post it.

Hello JPG, and welcome to Seven Forums.

You might see if you may be able to do the tutorial below to help with this. If needed, you may need to boot into Safe Mode to try it.

Logon Screen - Fix Showing Only "Other User" and Last Logged On User

Are you able to boot directly into Safe Mode (option one) instead of through Windows?

In that case, you could also do a system restore at boot using a restore point dated before you changed the password. This would restore the password to what it was for the date of the restore point.

In that case, see if you may be able to enable the built-in Administrator account in WinRE.

Built-in Administrator - Enable from WinRE

Afterwards, log in to the built-in Administrator to do the tutorial below. :)

Logon Screen - Fix Showing Only "Other User" and Last Logged On User