Failed to update for Windows Defender - KB915597 (definition 1.22.

[Daiz]

It said, "The program can't install definition updates
Error found: Code 0x80070643"

I tried to view troubleshooting tips on the web, but none seems to solve my
problem.

I wonder if the failure in updating now would affect the updates afterwards.

Can anyone help? Thanks a lot.

Cheers,
daiz