Windows 10: Automatic Repair Your PC did not start correctly I forgot my administrator password

I had shut down my PC for the night like I always do by pressing the PC button to turn off and instead of it turning off, a blue screen popped up with the words "Automatic Repair our PC did not start correctly Press "Restart" to restart your PC, which can sometimes fix the problem. Nothing worked. I tried to reset Windows instead and it says "There was a problem resetting your PC"The next few methods required me to log into my administrator account but I forgot my administrator password. Every single post that is on this problem requires to me to know my administrator password. However, it is

:)

 

Administrator password forgot,UAC problem










At "Preparing Automatic Repair" it's asking me directly for password after it is loading.
At "Please Wait" shows me those 5 picture that i've showed you up there.It's asking again for password.

 

Administrator password forgot,UAC problem

If you kill the power three times, on the third boot a Windows 10 PC will boot to the recovery environment, showing this screen.




Choose Advanced Options to get to this...




Click on Troubleshoot takes you here...




Click on Advanced Options to get this...




Where you should click on Command Prompt. The command prompt will open, now you can carry on from step 2 in Option Four of @Brink's Tutorial I linked to earlier. At no point should you be asked for an account or password.

If this is not what happens for you please describe what you do see, with screenshots if possible.

 

Administrator level User

Got the laptop. It's a Lenovo G500 so possibly has Lenovo stuff in the way? Anyway, booted it normally and it opens into a regular account without admin privileges. Rebooted it into Recovery mode (per Option 5) and get Lenovo logo and Preparing Automatic Repair message; then Select Account + "You need to sign in as an administrator to continue but there aren't any administrator accounts on this PC". There is an option "Forgot your password or don't see your account?" but selecting that brings up a screen which should list admin accounts but there aren't any. Pressing the only option on that page Restart leads eventually to a BSOD with Stop code: 0xc00002e3 (which I know is misconfigured o/s or missing or damaged system files).

Can anybody suggest next steps in resolving this?