I have Windows 7 Home Premium and I do not want to change to Windows 10. When I go to Windows Update, the only update presented is "your upgrade to Windows 10 is ready." Months ago I set my Windows Update to "check for updates but let me choose whether to download and install them" in order to prevent the change to Windows 10. For all this time I have not been able to update my Windows 7, and it is starting to malfunction in several ways. Please tell me how I can stop Windows 10 upgrades, and update Windows 7. My operating system is 64-bit and I have Service Pack 1.