The handy PowerToys Image Resizer tool helps you shrink the size of big and bulky images.

Image Resizer allows users to apply bulk image resizing through File Explorer, eliminating the need for third-party image processing tools. Here is how it works.

Huzzah! It also lets you choose which folder to store the resized images in along with some other features. Guess what else? It is free. Check out VSO Image Resizer here.