Windows Update is automatically turned on in Windows 10 and cannot be turned off for home users. Only enterprise users (Windows 10 for business) can delay the installation of Windows updates.
Windows Vista, Windows 7, Windows 8, Windows 8.1
- Open the Control Panel.
- If using Small icons view, click on the Windows Update option. If using the Category view, click on the System and Security option, then click on the Windows Update option.
- Windows Update will check for any available updates for your computer. If any updates are found, you should be able to view the available updates. It is highly recommended that you first install all important updates and service packs that are available. In some cases, you may only be able to do a few important updates or service pack updates each time, if some updates are dependent on other updates being installed first.
Windows XP and Earlier are not supported by Microsoft any more. These operating systems and their applications really should be updated to a newer system.