Introduction

This article explains how to temporarily turn off Windows Defender Antivirus in case it conflicts with Acronis software on Windows 10, e.g. prevents successful software installation or update/upgrade.

Solution

1. Open Windows Start menu.
2. Type Windows Security.
   
3. Press Enter on keyboard.
4. Click on Virus & threat protection on the left action bar.
5. Scroll to Virus & threat protection settings and click Manage settings
   
6. Click the toggle button under Real-time protection to turn off Windows Defender Antivirus temporarily
   
7. Click Yes to confirm the change, if prompted.
8. Check if the issue with Acronis software is resolved.
9. To turn back on Windows Defender Antivirus, click the toggle button again.
10. If you do not turn on the real-time protection manually, it will automatically resume upon the next computer reboot.