How can I compress or reduce gif file size to 1mb?

Paint can resize a GIF, which is a key step to reduce GIF file size to 1MB. By opening the GIF and using the Resize tool (found under the Home tab), you can lower its pixel dimensions (width and height), which directly reduces the file size.

The Photos app also has a resize function that can help you reduce GIF file size to 1MB. You can open a GIF, click the "..." menu, choose "Resize," and adjust the dimensions.

Like Paint, the Photos app may not preserve the animation when saving a resized GIF. It's primarily designed for static images, so while you can technically reduce the file size, the resulting file might not be the animated GIF you started with.

If you're working with a static (non-animated) GIF, Paint is a completely free, built-in tool that works well to resize the image and potentially reduce GIF file size to 1MB.

If you're working with an animated GIF, both Paint and the Photos app are not suitable, as they will likely strip the animation when saving. For animated GIFs, you would need to look at other free tools or online services specifically designed to handle them.