If pressing the Connect button in action center doesn't find the PC you're trying to connect to, try the following:
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Make sure your Windows device supports Miracast by checking the info that came with it or by going to the manufacturer's website.
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Make sure the PC you want to project to supports Miracast, is turned on, and is plugged in. To check if it supports Miracast, open the Connect app. Here's how: Go to Start , enter (type) Connect, and then select Connect from the list of results. The app will let you know if it doesn't.
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Make sure Wi-Fi is turned on.
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On the PC you're trying to project to, go to Settings > System > Projecting to this PC and make sure it's set up to be discovered.
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If you tried all of these and nothing worked, try restarting your PC.
