Software updating window
Windows Update requires Internet Explorer or a third-party web browser that uses Microsoft's MSHTML layout engine, as it must support the use of an Active X control to house the software that is executed on the user's computer.While details have changed from version to version, it has always scanned the computer to find what operating system components and software are installed, and compared the versions of those components with the latest available versions.In order for the v3 Active X control to determine what updates were needed, the entire list of available software on Windows Update was downloaded to the user's computer when they visited the Windows Update web site.As the number of updates offered by Windows Update grew, this resulted in performance concerns.It also narrowed down the list of available updates for the operating system and related components by sending details of what operating system version, service pack, and locale are installed.German technology web site published an analysis of the Windows Update communication protocol in February 2003, which received wide attention on technology web sites.
It can be replaced with Microsoft Update, an expanded version of the service which provides for other Microsoft software as well, such as Microsoft Office, Windows Live Essentials and Microsoft Expression Studio.To check for Mac software updates, open the App Store app on your Mac.Click Updates in the App Store toolbar, then use the Update buttons to download and install any updates listed.Arie Slob, writing for the newsletter in March 2003, noted that the size of the update list had exceeded 400KB, which caused delays of more than a minute for dial-up users.Windows Update v4, released in conjunction with Windows XP in 2001, changed this by having the Active X control submit a list of the hardware components to Microsoft's servers, which then returns a list of only those device drivers available for that machine.
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A link to Windows Update on the Start Menu gave access to additional downloads for the operating system.