I've just tried this, but I'm still not getting an option to uncheck the update from installing. I've tried checking for updates both before and after reinstalling the old driver, after restarting, and it just says Windows is up to date
Second edit... thought I solved the problem using the above post's advice, but it seems I haven't. I downloaded the original driver, and it works, but when I check Windows Update there's no option for updating the driver for me to uncheck. Everytime I restart I just have to reinstall the driver...