In other words, this is your one-time off solution.
Run and enter the following command: net stop "automatic updates" OR sc stop wuauserv.
The initial focus of Windows Update was on free add-ons and new technologies for Windows; security fixes for Outlook Express, Internet Explorer and other applications appeared later, as did access to beta versions of upcoming Microsoft software, most notably Internet Explorer 5.
Fixes to Windows 98 to resolve the Year 2000 problem were distributed using Windows Update in December 1998.
But even with Windows fully patched, any of your installed applications can be a potential point of entry for attackers should you forget to grab the latest version available.
Utilities such as Secunia's PSI can provide an extra layer of protection by scanning your computer for installed software, and then warning you of potentially unsafe applications that have available updates.
Microsoft attributed the sales success of Windows 98 in part to Windows Update.