Font problem, which font to remove?

Question

Windows

I reinstalled the system, and decided to upload my font pack, which I have been collecting for more than 8 years (that is, I liked the font, I put it in a folder and put it in Windows) and after installing the system I also copy all the fonts (for printing, web and other design)
But here's what then the font is obtained or replaced the system one or it was not installed correctly.
While I noticed this glitch in the messenger on fb (once it was also the forums), but on other sites like the norm
Once upon a time I figured out what the font was and deleted it, but apparently rolled it again
How to find font this font in the windows--fonts folder and delete
Tried with the WhatTheFont service but without result, it shows that this is a Nimbus Sans font (although there is no such font in the system)

Answer 1

You can see in the developer tools in the browser what style is applied to the element of interest, usually opens with F12.
If I correctly understood your element with a problematic font, then this set of fonts is used there, see among them: