My taskbar has disappeared and my screen keeps flickering, how do i fix it?

[Georgina Slowe]

my laptop updated and when i went to turn it on after it wouldn’t turn on till i plugged it in. once it turned on it went straight into dell recovery and i had to put in the bitlocker recovery key. once i’d done that i recovered it. it restarted and loaded up and i put my password in and it let me in. the home screen loaded but the taskbar has disappeared and the screen is flickering. but if i go onto something like chrome the home screen still flickers and the taskbar still isn’t there but chrome doesn’t flicker. what am i supposed to do? how can i fix it?

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