Windows Defender Keeps Crashing: Fix 2026
Direct Answer
To fix Windows Defender crashing, restart the Windows Defender service, update Windows and Windows Defender, and run the System File Checker tool. If issues persist, reset Windows Defender or perform a clean boot.
Step-by-Step Guide
1. **Restart Windows Defender Service**:
– Press Windows + R, type ‘services.msc’, and press Enter.
– Find ‘Windows Defender Advanced Threat Protection Service’ and ‘Windows Defender Firewall’, right-click, and select ‘Restart’.
2. **Update Windows and Windows Defender**:
– Go to Settings > Update & Security > Windows Update and click ‘Check for updates’.
– Install any available updates.
3. **Run System File Checker Tool**:
– Press Windows + X, select Command Prompt (Admin), and type ‘sfc /scannow’ to run the System File Checker tool.
4. **Reset Windows Defender**:
– Press Windows + S, type ‘Windows Defender’, and open it.
– Go to ‘Virus & threat protection’ > ‘Virus & threat protection settings’ and toggle off ‘Real-time protection’.
– Restart your computer and toggle it back on.
5. **Perform a Clean Boot**:
– Press Windows + R, type ‘msconfig’, and press Enter.
– Go to the ‘Services’ tab, check ‘Hide all Microsoft services’, and click ‘Disable all’.
– Restart your computer.
Frequently Asked Questions (FAQ)
– **Q: Why does Windows Defender keep crashing?**
A: Windows Defender may crash due to software conflicts, outdated Windows or Windows Defender versions, or corrupted system files.
– **Q: Will resetting Windows Defender delete my files?**
A: No, resetting Windows Defender will not delete your files. It only resets Windows Defender settings to default.
– **Q: How often should I update Windows and Windows Defender?**
A: You should update Windows and Windows Defender regularly, as new updates often include bug fixes and improvements to security features.
Leave a Reply