downloading error for windows update KB 2267602

[bureau.jacques]

update_errot.JPG

I have been trying for several days to download windows10 update KB 2267602 and I systematically receive a download error 0X80070643;
Am-I the only one having this problem?
is it really serious?
Thank you for your help.

[HansV]

It's important to keep Microsoft Defender up-to-date, so I would certainly try to solve it.
See if How to Reset Windows Update in Windows 10 helps.

[JoeP]

You may try manually downloading the most recent version of the update at Latest security intelligence updates