Home
Technology

How to Fix Windows 11 Black Screen (January 2026 Update)

Is your computer showing a sudden black screen or is Outlook Classic failing to open today? Since the release of the January 2026 security update (KB5074109), thousands of users are reporting critical system instability. From Nvidia GPU conflicts causing black screens to Outlook processes getting stuck in the background, here is the verified guide to fixing these Windows 11 bugs right now.

Why is Windows 11 KB5074109 Failing?

​The January 2026 Patch Tuesday has introduced a major regression. The primary issues include:

  • ​Black Screen Glitches: Particularly affecting PCs with Nvidia GPUs, where the screen freezes for 1-2 seconds before returning to normal.
  • ​Outlook POP/PST Hangs: Outlook appears to close, but the outlook.exe process remains active, preventing the app from being reopened.
  • ​Credential Failures: Breaking Azure Virtual Desktop (AVD) and Remote Desktop connections.

​4 Quick Fixes to Restore Your PC

​Follow these steps to bypass the 2026 update errors:

  1. ​Kill the Stuck Outlook Process: If Outlook won't open, press Ctrl + Shift + Esc, find outlook.exe in the Processes tab, and click End Task. This is a mandatory temporary fix for users with POP accounts.
  2. ​Update GPU Drivers: For the black screen issue, NVIDIA has released a hotfix driver. Ensure you are running the latest version from January 2026 to resolve the DirectX kernel conflict.
  3. ​Install the Emergency OOB Patch: Microsoft released KB5077744 on January 17th to fix the shutdown and remote desktop bugs. If you haven't installed it, go to the Microsoft Update Catalog and download it manually.
  4. ​Uninstall KB5074109: If your system is unusable, the official recommendation from IT experts is to uninstall the January update via Settings > Windows Update > Update History > Uninstall Updates.