I went into Paint and wrote down the steps.
- right click on picture file
- click on Open With and select Paint (not Paint 3D)
- when Paint opens, click on option Resize
- make sure Maintain Aspect Ratio box is selected
- the Horizontal and Vertical fields should both be set to 100, change either of them to 50
- click on OK
- click on File
- hold cursor on Save As, then over to JPEG. Click
- Choose a new name for your file (make sure you are saving to the Desktop)
- Save
If it's still too big you need to go
through those steps again with the new file.
Maybe that will help.
There are lots of other ways to resize a pic but this seems like the easiest one.