How to turn off the built-in antivirus software on Windows 10?

To disable Windows Defender in Windows 10, follow these steps:

1. Open the Windows Defender Security Center. You can find it by searching for “Windows Defender Security Center” in the Windows Start menu.
2. Click on the “Virus & threat protection” option in the left panel of the Windows Defender Security Center window.
3. Click on the “Manage Settings” link in the virus and threat protection window.
4. In the management settings window, switch the “real-time protection” option from “on” to “off.”
5. Windows Defender will be turned off as a result.

Please note that turning off Windows Defender may reduce the security of your computer. It is recommended to install other reliable third-party antivirus software before turning off Windows Defender.