To troubleshoot and resolve this problem, you can try the following steps:

123timer is a simple and free online timer with rich features:

Press +r to show the run box, type rstrui and click ok.

Silent or choose a sound.

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Now, a window keeps flashing up and disappearing immediately.

Choose a date when the computer was working correctly, and click next to restore the system files from that date.

Just installed windows 11.

Convenient timing, fullscreen mode, large selection of sounds, dark/light mode and much more.

Customize your countdown and share it with your friends or use it as your homepage.

I've been staring at the task manager (and process explorer) for days, and can't narrow it down to what is causing this.

If not, you can go back to step 1 to either undo the restore process, or try another date.

Alternatively, you can set the date and time to count days, hours, minutes, and seconds till (or from) the event.

Nothing has time to appear inside it.

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It also counts up from a past date.

I'm afraid i may have been infected by something.

Experience an online countdown timer with alarm:

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Create an online countdown timer for any date.

Set the hour, minute, and second for the online countdown timer, and start it.

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Create a countdown timer that counts down in seconds, minutes, hours and days to any date, with time zone support.

Or count down to a special date and time.

Check to see if the problem is fixed.