Windows 10: Why does this white square show up intermittently on my Win 10 desktop?

I don't know what triggers this. Seemingly at random. The only way to get rid of it is to restart the machine.

:)

 

PDF thumbnails inside of a white square

Hello

Suddenly, my pdf thumbnails appear inside of a kinda white square, like this:





I have no idea why this started happening, but installing an older Adobe Reader version has not helped and I cannot undo the most recent Windows update anymore.

I've tried these, but neither helped:

- Clear Thumbnail Cache
- Delete IconCache.db
- Use this Fix
- In Adobe Reader, turn off and on miniature preview
Between these steps, I of couse always restarted the computer

I want it to look like this:





(for some reason, I have this problem only on my laptop, but not on my desktop pc, even if both are the same Win 10 version, same updates, same Reader version, etc)

Does anyone have an idea how to get rid of that?

Thanks

 

[SOLVED] Mail & Store show as white square icons in task bar

Yes tried a disk cleanup today, rebooted and still the same. Interestingly now the icons in the start menu for mail and store are no longer white squares, they are blank document type icons. They still show as white squares in the task bar when running
though.

 

White squares on Desktop Icons

Hi Bob,

White squares on desktop icons normally happen due to a hardware issue. To better understand your concern, please answer the questions below:

1. What is the make and model of your computer?

2. Have you tried booting your computer into safe mode?

Regards.