Change size of minimize, maximize and close buttons

[Micik]

Hello guys,

Somehow,the size of close, max and min buttons on windows are somehow changed. The size of the buttons is somehow increased and I don-t know how to decrease or reset it to the default ones.
The OS on the computer is windows 8.
I have found an instruction but it is applicable only on windows 7.

I do not use this computer and owner claims he didn't do anything to change it.
Can you help me restore this to default size?

Thank you.

 

[Jody Thornton]

If you go to Control Panel -> Display, look at the lower half of the window. What is the text size of the title bars? It should be "11"