No log in screen after windows update

[KTIron]

Update happened the other day and now I can’t log in to my laptop, which is a borrowed laptop. There is no log in screen. 

[Samrit26]

Hello,

let’s narrow this down carefully before trying fixes.

When you say there is no login screen, I need to clarify what you see:

• Does the system boot to the HP logo and then stay on a black screen?

• Or do you see the Windows background image but no place to type your password or PIN?

• Does pressing Ctrl + Alt + Delete do anything?

• And just to confirm, since it’s a borrowed laptop — do you know if it’s managed (for example, joined to a company domain or uses BitLocker or HP Wolf Security)?

Each of those details changes the correct next step.

For now, here are the most common scenarios and corresponding actions:

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1. Black screen after HP logo / no login UI at all

• Power off the system completely.

• Power it on and tap F11 repeatedly to access Windows Recovery Environment (WinRE).

• If it loads, go to:
  Troubleshoot → Advanced options → Startup Repair.
  This checks for boot loader corruption after a failed update.

If Startup Repair fails, select Command Prompt and run:

sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows

(Adjust drive letters if necessary; you can confirm with diskpart → list vol.)

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2. Windows background shows but no password field

This usually means Windows Explorer or the logon UI process (LogonUI.exe) failed to start correctly. Try:

• Press Ctrl + Alt + Del — if the screen changes, select Task Manager → Run new task → explorer.exe.

• If that doesn’t respond, hard power-off, then boot into Safe Mode:

  • Power on → Tap F8 or use F11 → Troubleshoot → Startup Settings → Enable Safe Mode with Networking.

  • Once in Safe Mode, run Settings → Windows Update → Uninstall latest quality update.

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3. Managed or encrypted device

If it’s a company-managed or BitLocker-protected system, do not attempt recovery steps without the encryption key or IT authorization. You’ll need to contact the system owner to unlock it or reimage it.