Fixing Windows Defender Not Working on Windows 10
## Direct Answer
To fix Windows Defender not working on Windows 10, try restarting the Windows Defender service, checking for updates, and ensuring that it’s enabled in the Windows Settings app. If issues persist, you may need to reset or reinstall Windows Defender.
## Step-by-Step Guide
1. **Restart Windows Defender Service**:
– Press the Windows key + R to open the Run dialog box.
– Type `services.msc` and press Enter.
– In the Services window, scroll down and find the Windows Defender Service.
– Right-click on it and select Restart.
2. **Check for Updates**:
– Go to the Windows Settings app.
– Click on Update & Security.
– Click on Windows Security.
– Click on Virus & threat protection.
– Click on Check for updates.
3. **Enable Windows Defender**:
– Go to the Windows Settings app.
– Click on Update & Security.
– Click on Windows Security.
– Click on Virus & threat protection.
– Toggle the switch under Real-time protection to On.
4. **Reset Windows Defender**:
– Go to the Windows Settings app.
– Click on Update & Security.
– Click on Windows Security.
– Click on Virus & threat protection.
– Click on Virus & threat protection settings.
– Scroll down and click on Reset to default.
5. **Reinstall Windows Defender**:
– Press the Windows key + X and select Command Prompt (Admin).
– Type `sfc /scannow` and press Enter.
– Once the scan is complete, type `dism /online /cleanup-image /restorehealth` and press Enter.
– Restart your computer and then try reinstalling Windows Defender.
## FAQ
– **Q: Why is Windows Defender not working?**
A: Windows Defender may not be working due to a variety of reasons, including software conflicts, outdated definitions, or corrupt system files.
– **Q: Can I use another antivirus program with Windows Defender?**
A: It’s generally not recommended to use another antivirus program with Windows Defender, as this can cause software conflicts and reduce the effectiveness of both programs.
– **Q: How often should I update Windows Defender?**
A: Windows Defender updates automatically, but you can also manually check for updates by following the steps in the guide above.
– **Q: Can I reinstall Windows Defender if it’s not working?**
A: Yes, you can try reinstalling Windows Defender by following the steps in the guide above. However, this should be a last resort, as it may require advanced technical knowledge and can potentially cause system instability.
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