Preview Pane behavior

[musicollector]

I have not used my Windows 10 PC for 6 months. When I fired it up a few days ago, many files, mostly PDF, do not display in the Pane. The puzzling part is that it happens at random among files, external and internal drives. No rhyme or reason to it.

I learn that one of the reasons could be Windows updates. Why on Earth would they want to break something that is working in the name of security? The error I am getting - for the files that don't work - is: "The file you are attempting to preview could harm your computer."

I do not Windows dictating to me what files I can and cannot view. I don't want it to protect me from anything. I have already made sure all settings are proper. Any thoughts or ideas?

 

[musicollector]

I have not used my Windows 10 PC for 6 months. When I fired it up a few days ago, many files, mostly PDF, do not display in the Pane. The puzzling part is that it happens at random among files, external and internal drives. No rhyme or reason to it.

I learn that one of the reasons could be Windows updates. Why on Earth would they want to break something that is working in the name of security? The error I am getting - for the files that don't work - is: "The file you are attempting to preview could harm your computer."

I do not Windows dictating to me what files I can and cannot view. I don't want it to protect me from anything. I have already made sure all settings are proper. Any thoughts or ideas?

Okay, this is weird. I played around with some of the files that did not work and stumbled upon this: the files all had a hyphen in them. When I changed the hyphen to a comma, it started working! Go figure!