Unfortunately, we don't have much first hand experience with a good Windows solution. However, we did a  little research and this looks like it could be a good app that will do the trick:  https://imageresizer.codeplex.com/

If you like the look of it, you can download the application here:  https://imageresizer.codeplex.com/downloads/get/347439

We have also included instructions on how to resize images using Paint:  http://windows.microsoft.com/en-ca/windows7/resize-a-picture-using-paint

If you personally have any good Windows software you could recommend to others, let us know and we'd be happy to pass on the info!

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