Add a new user and make them the Admin. Your average account from day to day is an admin capable account so armed with this I could make a new Admin account then test that account and finally delete/remove the old admin account.
AND A SECOND THOUGHT is that your current account being admin as well you can reset the other admin account's password. Read how at https://www.lifewire.com/how-do-i-change-another-users-password-in-windows-2626068
I am running windows 10. For the last two weeks my computer takes about 10 minutes to start. I went to startup repair. They want my password as an administrator before they will run the program. I don't know my password. How can i find it or ask for a new one?