Hello, i found a couple of things for you, one is a hotkey that you have to set up . Look at this : ScreenMagnifier
Then , if that is not good for you, i have another idea . Maybe a screen attachment to use , magnifier. These cost money, and i do not endorse the products and do not want to appear to be spamming . but, i did google that and saw several that might work. Just a thought.
I almost forgot. In windows , start, accessories, in the ease of access, is a magnifier program built in. check it out, i find this the easiest way.