Photos on screen of HP Pavilion

The photos that appear on my screen when I start the HP are very nice, but where are they from? Is there a function whereby I can see what they are?
On my old Nokia phone I had the same kind of daily photos but with location captions. That was great.
I want to know where the photos are from, otherwise I really don't want to see them.

Does this happen right after the computer starts up and you can use the computer?

If so,
1) there's a "Print Screen" button on your keyboard towards the upper right hand side.
2) Press that button once,
3) open up Microsoft Paint.
4) Right click and say Paste, or press Ctrl+V. This should create a duplicate of what you saw on the screen on there as a picture
5) Save this image somewhere on your Desktop.
6) Go to TinEye Reverse Image Search and upload the picture there. This will show you images of very similar photos. You might be able to identify more information about the picture.

Hope this was helpful