Windows firewall will often block Windows 8 apps from working properly. You can solve this problem by adding an exception and letting the app past the firewall.
Steps
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Search for "firewall" in the Windows 8 Start menu. If you have a touch screen, swipe from the right edge of your screen to trigger a settings menu which has a search option. Another shortcut is to press the Windows button on your keyboard at the same time as pressing the "s" key.
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Select Windows Firewall from the options that appear in the top left.Advertisement
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Click on "allow an app or feature through Windows firewall in the Windows Firewall window.
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Click "Change settings" in the next window. Click "Allow another app..." in the bottom right corner.
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Select an app to add in the window that pops up, and then click "Add" to add the exception to the list.Advertisement
Community Q&A
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QuestionMy "Add an App" window shows no list. It's blank. What to do?Community AnswerRe-install the application. If that doesn't work, check if the app is compatible with your device. If THAT doesn't work, contact the admin of the application.
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