I have repeated gotten an error in trying to do an "normal" Windows update for the following:
Definition Update for Windows Defender - KB2267602 (Definition 1.207.3759.0) - Error 0x80070643
I tried to do the update directly via the Windows Defender tool and still go an error -- only this time the message was that it failed because of "internet or network connectivity problems" -- although I was online the entire time.
I've run the Microsoft Windows Update Troubleshooting tool and it appeared to correct a problem, but then the update again failed when it ran.
Any suggestions on what I might to do correct this problem?