My mouse travel NSB made the larger screen and I can't figure out how to make smaller

The touchpad on my Acer Aspire has stopped working so I bought a mouse - mouse travel NSB.  It was working fine until suddenly, the screen has grown and I don't know how and I 1 knows how to get it back.  If anyone can help.  My husband just thinks that I have to buy a new computer.  It can't be that hard!  Thank you.

Try operating ctrl and rotate the mouse wheel.

Tags: Windows

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