How can I close my files?

Mi
1

I have saved a file and the files can no longer be closed completely. There's always only a small rotating circle to be seen. Ctrl Alt and Del. I've already tried. I can't shut down my laptop either. What do I have to do to make it work again?

Aw

Try Ctrl + Alt + Delete

Then task manager

If it works here then close the corresponding programs. Unfortunately, this does not save.

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Hart would be very radical. Press the start button until PC / läppi is off