Check out the guide below that will show you how to resize images with this powerful and free tool. In this guide I will show you how to use the new and improved resizer that is compatible with Windows Vista and 7 (32-bit and 64-bit). We’ve covered the image resizer app before, but it was a PowerToy for Windows XP which didn’t work on Windows 7. Are you looking for a way to quickly resize an image or group of images without having to open a photo editing application? How about being able to resize an image by right-clicking any image and selecting the desired size? With Image Resizer for Windows you can.