Windows 10: Control Alt delete is not working in my system to unlock the laptop.

When I try to open a laptop which is in sleep mode, and use Control Alt Delete, there is no response. My screen is stuck at lock state. It was working sometimes when I restarted but sometimes it is getting stuck in the lock screen and I am not able to open my system.

:)

 

Ctl Alt Delete to unlock PC loops back to Ctl Alt Delete to unlock PC

I've tried it with both the built in keyboard and an external keyboard.

I also forgot to mention this is an intermittent issue. CTL ALT DELETE to unlock works most of the time. It seems like when my laptop stays locked a "long" time, like over the weekend, this issue appears.

 

Ctl Alt Delete to unlock PC loops back to Ctl Alt Delete to unlock PC

Hi Curtis, welcome to Ten forums.

Have you tried an external keyboard yet?

Check this thread for the Event Viewer errors.

Security Center error "DC040780"

I'm presenting this item as an FYI and not as a solution to your sign-in issue. I chose to defeat this unnecessary step in the login process and defeat the requirement to press Ctrl-Alt-Del before signing-in.

Enable or Disable Secure Sign-in with Ctrl+Alt+Delete in Windows 10

 

Control-Alt-Delete Behavior Changed- PossibleTo Change Back?

Sometime within the last two weeks, I've seen a behavior change when unlocking my Windows 7 laptop. Previously, when it was locked and I hit control-alt-delete, I was shown my username and a password field to enter my password into. Once done, the computer
was unlocked.

Now, when the laptop is locked and I hit control-alt-delete, I have to select my user first, then provide my password. My user is the only option shown. My local IT support can't explain the change.

This added step slows down logging in, and is an annoyance. So I'm wondering if there's a setting somewhere that was set that can be unset to revert back to the previous behavior.

Thanks!