Windows 8 App Store and defender not working?

Windows defender discovered a virus on my system which I have since removed but now I cannot open defender without getting an error and the App Store or any of the "modern UI" apps will not load, saying it could be a network issue.

My network is fine and both the defender and App Store issues happened at the same time.

Anyone had anything similar?
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More about windows app store defender working
  1. Ye I know it's not great. It seems like my pc can't connect to any Microsoft service, I can't change my local account to a Microsoft account either
  2. I wanted to ask if your browser can connect to the internet as a firewall can cause a problem like this.
    else if you cannot browse and you surely connected to the internet post us back ;)
  3. Windows Defender includes Security Essentials in 8/8.1. Possibly a corrupt file in your OS.
    First try System File Checker
    Winkey plus 'X'
    Choose Command Prompt (Admin)
    Type sfc /scannow then Enter

    It finds and fixes errors in Windows, but doesn't always report them. Run it and see if the fault disappears after re-booting your system
    If corrupt files are found that can’t be fixed, try

    Dism /Online /Cleanup-Image /RestoreHealth

    Re-run SFC

    To view CBS Log

    findstr /c:"[SR]" %windir%\logs\cbs\cbs.log >sfcdetails.txt

    Search C drive for sfcdetails.txt or navigate to C:\Windows\System32 and scroll down
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