Windows 10: Program's interface font become extremely big and unreadable

I'm currently updated my windows into win 10 and then almost all of my interface font looks like that (from the picture). not only on my steam but font from edge browser also turned like that. please help I cant figure out how to solve it

:)

 

Small Font in Programs

Hello all,

I recently purchased a new computer; it's the Ultra HD windows 10 2-in-1 Toshiba. The font on the computer and the size of the icons are perfect. But when I open programs (like SolidWorks or InternetDownloadManager or Many other), the font is completely
non-proportional. Fonts are either Way too big or Way too small, either making it unreadable, or too big to fit in its assigned window. I need help! I can't install anything or use most of my apps!

 

Bizzare behavior of fonts and sizing in applications with Windows 10

I have at least two programs that are showing very bizarre behavior of fonts and sizing of dialog boxes in programs or the installation dialogue boxes. Either the fonts are enormous blocking out the underlying boxes, or so tiny as to become unreadable.
After a lot of discussion with the developers, the problem is not in the applications, but Windows 10. I proved this by loading the identical programs onto another Windows 10 PC and it works fine. I've checked through all the compatibility fixes, and checked
the font scaling and sizing and set them to their defaults. I suspect that the problem is in the fonts themselves - that the applications are using a bad version or something. I tried to use the restore fonts to default, but the option is grayed out. I really
need to fix this! I'd like to try to restore the original Windows fonts, or ones that I got from the computer that displays the app correctly. What are the exact steps I need to take to do this, or is there something else that I might be missing.