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windows defender update fails after 16299.309 update
my system has updated to 16299.309 ok but i keep getting a failed Windows Defender update error
it's says it's downloading, then installing, gets to 100% and then throws error message below:
"Definition Update for Windows Defender Antivirus - KB2267602 (Definition 1.263.659.0) - Error 0x80070643"
i tried many fixes including the Trouble Shooter, SFC, resetting download history (batch file from Brink) & ended up reinstalling windows 10 (keeping programs, files & settings) but no fix.
if i try to update directly from defender i get "error code - 2147023293 ...Fatal error during installation"
Disk Cleanup of system files is also problematic & doesn't complete on its own.. has to be stopped & restarted numerous times but ultimately seems to delete the required files..
since i reinstalled windows 10.. do you think it's a setting that was retained from previous install that is stopping it from working? i've wasted hours on this and i've hit the wall.