Windows 10: Definition update could not be installed Definition update for Windows Defender Antivirus

Error installing - 0x8024000b

My PC is up to date.

Dell Inspiron 24-5459, Intel Core i7-6700T CPU at 2.80 GHz, 12 GB of RAM, 64 bits. Windows 10 home, version 1903 Let me know why it failed and if this update is necessary.

If necessary, how to fix the error and install it. Help is greatly appreciated.

:)

 

definition update for windows denfender antivirus

Hi mknic,
I have literally just installed the definition update KB2267602 without any problem. I suggest as a first step checking all the Windows Defender settings to make sure they all have the 'green ticks' in each section.






ps. The only reason the 'Family Options' is not ticked is because I am the only user on my computer.

I also would suggest running the 'Troubleshoot' feature in the Update & Security settings which has a section dealing with update problems.

 

Windows Defender Antivirus Definitions not updating

An automatic code was generated:

Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.269.444.0) - Error 0x80070643

Windows Defender Antivirus not updating successfully.

 

Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.269.518.0)

Hi. I can't update or install anything because of this KB Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.269.518.0)