You could try a manual download and update.
https://www.microsoft.com/en-us/wdsi/defenderupdates
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
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i am tried update and. but problem my virus & therat protection and not work s. but them restart still problem keep them Auto off and on... https://prnt.sc/1yyrley
You could try a manual download and update.
https://www.microsoft.com/en-us/wdsi/defenderupdates
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
i not did find upvote. hmm just i am first here. okay np.
I cant read much them english. I not good do fix my PC. i try Keep Virus & therat protection Keep Auto on. but own did off and bug Restart. i try keep Restart still stop long...
you do see pic. how i am fixing.
i know u send this https://www.microsoft.com/en-us/wdsi/defenderupdates. but where i can find better for me help?
or if need help me on PC Quick Assist?
i need connet chat. I am Deaf. ok
Might just try downloading / installing this one to see if it solves the problem.
not work get downloading. https://prnt.sc/1yyv2zq
May be some connectivity issue, it downloads fine for me just now.