1. In the Windows search box, in the lower left, type "paint". Paint will probably be at the top of the list. Select it.
2. In Paint, open the file containing the photo.
3. In the tool bar at the top, there's a section titled "Tools". Select the eraser. It's the little pink thing-y. Use it to erase the logo. If you want to get a little creative, you can use the Fill tool (in the Tools section) to fill in the white area created by the eraser.
4. Save the file. Or do a Save As, to keep the original file as is.
There's a brush tool also, but I haven't quite figured out how to implement it.

