How to Fix Windows Security Not Opening on Windows 11 (2026 Guide)
Windows Security is one of the most important features in Windows 11. It helps protect your computer from viruses, malware, and other security threats. However, some users encounter a frustrating problem where Windows Security refuses to open, shows a blank screen, or crashes immediately after launching. If you're facing this issue, don't worry. In this guide, I'll walk you through several proven methods that can help restore Windows Security and get it working again. ## Signs of the Problem You may be experiencing this issue if: * Windows Security opens to a blank screen. * Clicking Windows Security does nothing. * You receive an error message when launching it. * The Security app closes immediately after opening. * Virus & Threat Protection is unavailable. ## Why Windows Security Is Not Opening There are several possible causes: * Corrupted system files. * A recent Windows update issue. * Security Center service problems. * Conflicts with third-party antivirus...