I have various Windows 7 computers that were last updated perhaps in 2016, so obviously they don't have the latest Win 7 updates, including the latest updates for programs like Firefox and Thunderbird. If I'm upgrading to Win 10, does it really make a difference if Win7 and all programs are updated to the lastest versions, as Win10 will be the latest version anyway. I don't intend to revert back to Win7 as change is inevitable. I am also uninstalling the outdated Internet security program prior to the Win10 upgrade. Any opinions on this would be helpful -- especially from those of you who have tried upgrading without updating Win7 first. Thank you!