How can I reduce JPEG file size in KB on Windows 11 without losing quality? (opens in new tab)

I have hundreds of JPEG images on my Windows 11 PC that I need to make smaller in file size (KB). The images are currently too large to upload to a website and email, and I plan to reduce their size while still keeping them clear enough to view.Honestly, I'm not very experienced with image editing, so I'm looking for a simple and safe method to decrease the size of jpeg file below 100kb if possible. Not sure if Windows 11 has a built-in tool for compressing JPEG files, or if I should use Pain...