I decided to check on the Windows Defender and see to the virus definitions, then somehow it won't download the virus definitions and keep everything updated. The protection is turned on. So I decided to head over to Windows update. I select check for update then for some reasons it wasnt able to check and came back with the error code (as said in title) so, I don't know what to do next because I've tried again for 3 times. Anyone know how to fix this? I even tried to restart wuauserv and bit thing, well my roommate helped but with no luck, nothing changed. I'm on Windows 10. Please if anyone know how to fix this. Only an experienced technician would know this. 
thank you!
Sent from my SM-N910T using Tapatalk
thank you! Sent from my SM-N910T using Tapatalk
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