The easiest way to get security updates automatically is to go to the Microsoft Update website and make sure that you have automatic updating turned on.
Microsoft Update provides very important updates for performance and security. If you have automatic updating turned on and it isn’t working, or if an update can’t be installed, you will see a warning message.
If your computer is running Windows 7, Windows Vista, or Windows XP and your updates don’t install, you can use the Windows Update troubleshooter to find and fix problems. To open the troubleshooter:
Click the Start button.
In the search box, type Troubleshooter.
In the results list, click Find and fix problems.
Under System and Security, click Fix problems with Windows Update.
Note: Support for Windows XP ends on April 8, 2014. You can get solutions to your Windows XP security issues now, but not for too much longer. If you’re still using Windows XP, you’re missing out on all kinds of security, productivity, and performance enhancements that are available in Windows 7 and in Windows 8.
Windows 8 has an automatic troubleshooter that can fix some common problems with Windows Update. To open the troubleshooter:
Swipe in from the right edge of the screen, and then tap Search.
If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search.
In the search box, type Troubleshooting.
Tap or click Settings, and then tap or click Troubleshooting.
Under System and Security, tap or click Fix problems with Windows Update.
For more information about troubleshooting problems with Windows Update in Windows 8, see Troubleshoot problems with installing updates.
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