Windows Security

Windows

How to Fix Windows Security Not Opening in Windows 11: A Complete Troubleshooting Guide

A corrupted SecHealthUI package or lingering third-party antivirus registry keys can completely block the native Windows 11 defender from launching. Running a specific PowerShell command to forcefully re-register the app package bypasses these restrictions and restores access....

Sep 21, 2026 5

Excel

Microsoft's Excel Paste Bug Gets a Messy, Partial Fix for 2016 Users

Microsoft has issued a hotfix for the silent paste failure bug, but it exclusively targets Excel 2016 users. Even with the patch applied, workbooks utilizing conditional formatting may still refuse to paste data....

Sep 21, 2026 11

Microsoft

Microsoft Forces Secure Boot 2023 Update to Millions of PCs: How to Verify Your Status

HP laptops face BitLocker loops, multiple reboots are expected, and a new C:\Windows folder appears. The Secure Boot 2023 update quietly tests OEM limits....

Jun 15, 2026 24