ScreenToGIF is a free windows app that worked great for us!
i tried ScreenToGIF but i found the framerate was terrible... maybe i just need to mess around with the settings? thanks for the replies, i'll give these a go!
there's a little clock looking icon on the bottom to adjust framerate, default is 15 fps I believe.
If you want absolute best quality I would record with a tool like OBS and then convert to GIF, but ScreenToGif is so much easier and faster.
i'll have another look. thanks!