Windows 10: Why do I keep getting an error code for protection definition update failed Microsoft...

Why do I keep getting an error code for protection definition update failed Microsoft defender -2145124330? I have uninstalled apps to make room for updates and still getting the same error. My laptop is out of date and will not update to Windows 11 so is there a fix for my error or is it because I'm using Windows 10 and you have stopped doing virus definitions updates for it?

:)

 

Protection Definition update failed; Error Code -2147023278

I tried all of this and it still did not fix my error.

There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:

Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.259.209.0) - Error 0x80070643

protection definition update failed.

Error code: -2147023293

error description: fatal error during installation.

 

Protection Definition update failed; Error Code -2147023278

Hi Robert,

Kindly refer to this support article for a detailed instructions on how to resolved error code 2147023278.

• How to troubleshoot definition update issues for Windows Defender

Let us know how it turned out.

 

"Protection definition update failed. Error Code: -2147023278

I Haven't updated my windows defender since December last year I tried updating it today and got this:

"Protection definition update failed.

Error Code: -2147023278

Error description: Another installation is already in progress. Complete that installation before proceeding with this install"

Now the problem is I'm not installing anything so why is it showing this message?

* Original title: error message

* Moved from Windows 10/Security