I deleted my Admin account which is the only account in my PC and I cannot open the computer. I amd stuck at the CTRL+ ALT+DEL screen of my computer. What can I do to open my computer?
How did you manage to disable the only account? You can't delete the account you are logged into, so you must have at least one account still active!
you can try to boot on windows dvd and Use System Restore to restore your computer to a previous state or do repair? which windows version you have
Bypass Windows Logons with the Utilman.exe Trick
have a look at this