.pdf files as too small in Preview Pane.

[defaultapn90tgkc3le]

In Window 10, if I'm in Preview Pane mode I can only see .pdfs in about 2/3 size vs Microsoft products I can see full size, so quick reviews of .pdfs is very difficult to see at times.  Below is an example.  His didn't seems to be an issue until I upgraded o Window 10, any way to make the preview bigger?

[radzmar]

The Preview Pane is a built-in-tool of Windows itself, which has nothing to do with Acrobat. 

It renders PDF always full size. I don't think you can change this.