Hi TJ,
Thank you for sharing your concern here in Microsoft Q&A forum.
I understand that the device is currently stuck at the lock screen and only responds to Ctrl + Alt + Delete, with no response to touch or keyboard input.
As mentioned earlier above by the IA, there's a high chance that your device issue is related to Windows' Secure Sign-In feature, which requires pressing Ctrl + Alt + Delete before the login prompt appears. This feature can sometimes be enabled automatically after a system update or change.
However, just in case disabling Secure Sign-In didn’t resolve the issue, it’s also possible that a deeper system-level problem is affecting your device, such as corrupted system files, driver conflicts, or a damaged user profile.
To address this, I recommend following these next steps:
Step 1: Boot into Safe Mode
Safe Mode loads only essential system files and drivers, which helps isolate the issue.
- Restart your device.
- As it powers on, press F8 or Shift + F8 repeatedly.
- Select Safe Mode with Networking from the menu.
Step 2: Run System Repair Tools (SFC and DISM)
These tools help detect and fix corrupted system files.
Step 3: Create a New User Profile
If your current profile is corrupted, a new one may bypass the issue entirely.
-In Safe Mode, go to Settings > Accounts > Other users.
-Click Add account → choose Add a user without a Microsoft account.
-Enter a username and password → click Next.
-Restart and log in with the new profile to test functionality.
For more detailed instructions, please refer to the official Microsoft support page at: How to create a Local account in Windows 11 - ARTICLE - Microsoft Q&A
Step 4: Perform an In-Place Upgrade
This reinstalls Windows without deleting your files or apps.
- Download the latest Windows installation media from Microsoft: Download Windows 11
- Run Setup.exe and choose Upgrade this PC now.
- Follow the on-screen instructions and select Keep personal files and apps when prompted.
*Disclaimer: Let’s try performing an in-place install or in-place upgrade which will refresh your Windows files and operating system without removing files or applications. That being said, we always recommend that if you have important data, you should back it up before making large system changes. If you want to back up your data first, please do so. Once you are done backing up, you can follow the steps in the following guides:
How to run In-place upgrade in Windows 11 - Microsoft Q&A
How to perform a Windows 11 In-place upgrade | Microsoft - YouTube
Please keep me posted on how it goes, I’m happy to assist further.