Windows 10 doesn't finish loading [Closed]

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Hello,
I have a dell laptop with Intel core 15. Tried loading windows 10 and now the desktop flashes but nothing works. There are 3 icons on a task bar at the bottom of the page (windows logo, two crossed rectangles, and a message icon) but clicking on them has no effect. Tried restarting, get a welcome screen but once I click on it, goes back to flashing desktop.