By default, Windows 10’s built-in antivirus automatically sends samples of suspicious files from your computer to Microsoft. Although this helps to increase security, you can choose to disable this option, if you wish.

In this article, we will see how to disable this option on your PC.


Why is Windows 10 Antivirus sending files to Microsoft?

Windows 10’s built-in antivirus program, known as Windows Security, Windows Security, or Windows Defender, sends suspicious files to Microsoft so the business can learn about new viruses and other threats.

These sample files submitted from your computer help Microsoft add new virus definitions to its antivirus. So the next time this virus or malware is found on someone else’s PC, Windows 10 built-in antivirus will be able to block this file immediately.

Microsoft makes every effort not to include personal information in these submitted files. If a file is likely to contain data about you; for example, a Microsoft Word document containing a suspicious-looking macro; Windows will ask you for permission before sending the file.

How to stop the automatic sending of samples?

You can prevent Windows 10 Antivirus from sending files to Microsoft if you are not comfortable with this feature. The choice is yours.

  • To deactivate the option, open the start menu, search Windows security, then click the app in the results.
  • When the window Windows security opens, click Protection against viruses and threats.
  • Scroll down the page and find the section Virus and threat protection settings. Click on the link Manage settings.
  • Find the option Automatically send a sample and turn it off.

Although the option to send files is now disabled, you can still manually submit samples of potential threats to Microsoft. Click the option Send sample manually in the screen above to go to the site where you can download your suspicious files.

If you have installed an anti-virus that is not Windows Security, it may automatically download specific files to the servers of that other anti-virus. The Windows Security option only scans the built-in Windows 10 antivirus, not any third-party antivirus programs that you have installed. Check your antivirus program settings for more information.


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