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FireHammer

Level 10
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Aug 27, 2020
451
List of current issues
Microsoft Defender Update Fail.
Steps taken, but have been unsuccessful?
Reboot.
Hi, People, I really have a problem now, my Microsoft Update is failing, when I try to update Microsoft Defender I get this Error:(0x80070643),tried to reboot but same thing happens.
Please Help.:cry::unsure:
 
Solution
Have you tried a reboot?
After that when you try again, it should be resolved.
EDIT: you tried a reboot already, what happens if you try updating through Microsoft Defender itself?

Terry Ganzi

Level 26
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Feb 7, 2014
1,546
HI, Champ type this in the search bar cmd run it as admin when open type this in it: ( sfc /scannow ) Don't include brackets. When it is completed it will tell you if it has found corruption and it will repair it automatically all required of you is to reboot if corruption is found. when finish check back in and let me know.
 
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FireHammer

Level 10
Verified
Well-known
Aug 27, 2020
451
Have you tried a reboot?
After that when you try again, it should be resolved.
EDIT: you tried a reboot already, what happens if you try updating through Microsoft Defender itself?
Hi @Gandalf_The_Grey and thank you so much for responding, when I look at Microsoft Defender it says it is updated 10 minutes ago, I do not understand?:unsure:
 
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