Unable to update Windows Defender (error 0x80240022), also - Microsoft Community

issue itself:
of apps can't access internet (skype, flash player, windows defender etc). , windows refuses download new updates.

windows 10 version 1607 (64-bit)
no other anti-malvare/virus software installed except windows defender. firewall on.
connected via router. tryed install free version of avast antivirus, check maybe there issues network, couldn't connect it's server either.
last time windows succesfully updated 20 march, , after date attempts of updating failed.

i guess delete important files when using ccleaner or uninstall tool app.

please help, searched everywhere, still got no answer. system restore last thing in situation.

hello,

since having issues connecting internet on specific applications, suggest perform clean boot eliminate software conflict on machine. assist concern, can refer article on how perform clean boot.

note: once done troubleshooting, can refer how reset computer start after clean boot troubleshooting on same article.

we wait response.

regards.

Windows / Windows 10 / Windows update, recovery, & backup / PC