TIP: If you forgot the password or don’t know the default Administrator account password in Windows 7 Ultimate, use an account with an administrator priviledges and then go to user Accounts > Manage another account and choose Administrator - you must enable it first for it to appear - Run > Type cmd > type in net user administrator /active:yes and should enable the default Administrator account. So, assuming that Administrator account is already enabled and you forgot the password or have really no idea what it is, just select it in User Accounts and click on Change password. Type in the new password and confirm. Log off your current user and log in to the Administrator account using the password you set.

Just found out today (not sure if this is really a solution or I’m just a dumbass) because I didn’t know the password of the default admin and to my surprise you can actually change the password of the default admin using another admin account - which I thought that it shouldn’t be able to since default admin is the Admin of all admins in windows. But thankfully I was able to change it or else I would’ve re-installed again if I wasn’t able to access the default admin account. Sick.