Alt-tab not switching after rebooting(ask again2)

[Microsoft Windows]

Here is the link again.https://drive.google.com/file/d/1muUsnrx6dsSuLpd43kXN77g2Sp6vfRwE/view?usp=drive_link I think you can now access the video that is showing the problem I have.When I press alt + tab the performance screen is popped up, but there is no action for my selection for window. Again, nothing happend. After rebooting, the Alt + Tab function does not work. However, when I carry my laptop and put it into sleep mode during transport, it suddenly starts working again after prolonged use.Here are two hypotheses (based on assumptions made by myself who doesn't know much about comp

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