How do I Restore Changed Default Fonts?

after installing a program , i got this problem in some programs
biger fonts and larger area
I test some way's.
e.g

Control Panel\Appearance and Personalization\Personalization\Window Color and Appearance.. window color and appearance.

But My Problem Is Still Alive!
i put some screen shots of this:




BUT I SEE SOME PROGRAMS STILL FINE
LOOK LIKE THIS:

Which program did you install?

Corazon said:

Which program did you install?

(tnx)
a regular game WITH RUSSIAN INSTALLER

StalkeR said:

This tutorial should help you.
Fonts - Change

(tnx)
i tried this way at first, thats usefull but in other way.

System Restore

marsmimar said:

System Restore

Thank You Very much.
I Found A Near Restore Point. Problem has been Fixed.

Glad to hear it worked. Thanks for posting back.