Screen size on opening

Can anyone please tell me why every time I open a web site, I always get a half size screen rather than a full one, see screen shot for example.
RonBin

When I see that happen I will resize it as I want then hold down the Ctrl key while clicking Close or the X. Sometimes takes a couple of tries to get Windows to 'learn' it.

So how do you resize the screen please??
RonBin

That's basic Windows functions, move the mouse pointer to any edge or corner of the window and when the pointer changes to an arrow just click and drag as desired. Or click the Maximize icon [middle] in the upper right corner to get it full size [not the same as Full Screen].
And do yourself a favor and get a Windows 7 for Dummies book, quite good reading in spite of the title.

Thank you Berton, just got the book down off the shelf, never thought to look in there.
Cheers for now,
RonBin

Berton,
I have been looking through Windows 7 for dummies and I cannot find the instructions you gave me? In which chapter and on what page are they please??

Regards,
RonBin

The Index on page 413 under "windows on desktop" shows "size, changing" and lists pages 59 and 66-68

Thank you,
You