Cannot open the lockscreen

Hello，some1fromEarth

Thank you for posting in the Microsoft community.

Understanding that you are unable to open the lock screen interface to the extent that you are unable to log in, please enter safe mode first. You can tell me which version of Windows you are using so that I can advise you more specifically, currently you can visit this link: Start your PC in safe mode in Windows - Microsoft Support This provides a way to enter safe mode for various system versions.

• Please test if you can log in on the lock screen in safe mode.

• To confirm if the issue can be affected by third-party software, you can perform a clean boot to see if third-party software has compromised your system's components. For clean boot steps, see: How to perform a clean boot in Windows - Microsoft Support

Exemption: "Clean Boot" boots Windows with a minimal set of drivers and startup programs. It helps you determine if a background service is interfering with your game or program and isolate the cause of the problem.These "clean boot" steps may seem complicated at first glance. However, to avoid problems, follow them in order and step by step to help you get back on track.

• You can use this command to check and fix if system files are missing and corrupted, the system searches for the command prompt at the bottom of the search bar, right-click to run it as administrator, type the following, and press Enter on each line as appropriate:

     Dism /Online /Cleanup-Image /ScanHealth

     Dism /Online /Cleanup-Image /CheckHealth

     DISM /Online /Cleanup-image /RestoreHealth

     SFC /SCANNOW

• Create a new account, log in to the new account, and see if the problem persists. If the issue doesn't occur in the new account, or may be related to the original user settings or configuration file, follow the steps below: Create a local user or administrator account in Windows - Microsoft Support

Have you performed any changes such as system updates, BIOS updates, or installation of third-party programs before this problem occurred? If so, please let us know and we will provide you with alternative solutions.

Give it a try and feel free to contact me in the forums with any developments.

Best Regards，

Rota |Microsoft Community Support Specialist

Welcome : The screenshot posted, shows that

you're in the lock screen. As you mentioned

"You clicked" on the - Sign in - and doesn't let you

to sign in . . is that correct,.? Yes - No ..

11111!!!!!2222@@@@@333####555%%%%&&&

Anyway : I posted a video that, shows a Lock icon that

has to be clicked to open. if is locked > That looks like

is your case : After unlocked, may show the "Sign in" options

like type the password : Check it out,.!

-- Don't click or subscribe to anything, shown in the video

Chromebook Screen Lock (youtube.com)

Whenever I open the Chromebook 11 3180 ...

A Chromebook doesn't run Windows. It runs ChromeOS, which is a Google product.

Here is Google's official Chromebook Help Community: https://support.google.com/chromebook/community?hl=en