Windows Defender not updating automatically in Windows 11/10

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Windows Defender or Microsoft Defender or Windows Security gets its regular updates through Windows Updates. However if for some reason, the definition update is not able to proceed as expected, so you tin can endeavour a couple of methods to resolve it. Follow these when you lot either receive the message that you don't have the latest definition or updates that cannot be checked, downloaded, or installed.

Windows Defender not updating automatically in Windows 11/10

If Microsoft Defender (Windows Security) in Windows xi/10 does non update automatically, you tin can ou tin can troubleshoot definition update issues, past following these suggestions:

Manually bank check for updates in Windows Defender
Run Windows Update Troubleshooter
Trigger Microsoft Defender updates using the command line

Y'all volition need admin privileges for some of them so brand certain your account has sufficient privileges.

1] Manually check for updates in Windows Defender

Sometimes it is a temporary issue, and all you demand to do is restart your PC. In one case you do that follow the steps as below:

Open Windows Security
Click on Virus and threat protection
Then click on Check for updates and then again click on Check for update
Information technology volition start looking for new definition updates.

Read: How to update Windows Defender manually.

2] Run Windows Update Troubleshooter

Virtus definition updates are rolled out through Windows Updates. If the update service has issues, so it will cause the trouble. Thankfully Windows comes with built-in Windows Update Troubleshooter that can resolve most of the problems which takes a lot of manual effort.

Open up Windows ten Settings ( Win + I)
Navigate to Update and Security > Troubleshoot
Click on Windows Update, and so click on Run the troubleshooter button.

Once the wizard completes the process, bank check for the definition update using Windows Update.

three] Trigger Microsoft Defender updates using control line

You tin can manually trigger the update to devices. The control will clear the electric current cache and trigger an update. You can directly run this on an elevated command prompt or create a batch script that runs the following commands as an administrator:

cd %ProgramFiles%\Windows Defender

MpCmdRun.exe -removedefinitions -dynamicsignatures

MpCmdRun.exe -SignatureUpdate

Read: How to update Windows Defender definitions using Windows PowerShell.

The concluding section is also applicable for the Enterprise computers and can be used by administrators or It admins.

I promise the post helped you to effigy out how you can resolve the Microsoft Security or Windows Defender update.

In case none of these works, you tin always connect to the Microsoft Support team, and take their help to resolve the problem.

Similar mail that may aid you:

Fault 8024402f, Protection definition update failed on Windows 11
Windows Defender will not update definitions with error codes 0x8024402c, 0x80240022, 0X80004002, 0x80070422, 0x80072efd, 0x80070005, 0x80072f78, 0x80072ee2, 0x8007001B.

Anand Khanse is the Admin of TheWindowsClub.com, a x-year Microsoft MVP (2006-16) & a Windows Insider MVP. Please read the entire postal service & the comments first, create a System Restore Point before making whatsoever changes to your organisation & be careful about any tertiary-party offers while installing freeware.