Microsoft continually releases Internet Explorer updates that resolve issues related to security and compatibility. Internet Explorer 11, the latest version at the time of publication, lets you perform manual updates using the built-in Windows Update feature. Alternately, you can set Internet Explorer 11 to automatically perform updates whenever they become available. If you are using Windows 7, upgrade to Internet Explorer 11 via the MSDN website.
Press Alt-T on any open Internet Explorer 11 window, and then click the Windows Update option on the Tools menu.
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Click the Check for updates option to the left or the center of the Windows Update window, and wait while the application checks for the latest updates.
Click the important updates are available option that is preceded by the number of updates available to view a list of updates.
Check the boxes next to any updates that include Internet Explorer as part of the update name. You can look for any optional Internet Explorer updates by clicking the Optional side-tab; if any updates are available, select them and then click Install. Windows Update now downloads and installs the selected updates.
Click Restart now after the update process finishes to restart your computer and finalize the changes.
Set Automatic Updates
Click the gear-shaped icon on any open Internet Explorer window, and then click About Internet Explorer. The About Internet Explorer pop-up windows opens.
Check the box next to Install new versions automatically to set automatic updates in Internet Explorer.
Click Yes on the User Account Control dialog box to proceed.
Click Close to exit the About Internet Explorer pop-up window. Internet Explorer now automatically downloads and installs updates as soon as they become available.
Upgrade to Internet Explorer 11
Open Internet Explorer, and then navigate to the Internet Explorer 11 download page on MSDN. Under the Downloads section, click Internet Explorer 11 for Windows 7.
Click the Click here for the fast online version to go to Internet Explorer 11's online installer page.
Click the Get Internet Explorer 11 button. You can opt to make Bing and MSN your default search engine and home page by leaving the box checked next to I would also like Bing and MSN defaults.
Click Run to download and run the Internet Explorer 11 installer. If prompted, click Yes on the UAC pop-up window to proceed.
Click Install to start upgrading to Internet Explorer 11. Any updates to Internet Explorer 11 are also added during the process.
Click Restart now to restart your computer and apply the changes. Open Internet Explorer 11 either from the taskbar icon or the Start menu shortcut.
The automatic update setting in Windows Update automatically updates the operating system and all built-in products including Internet Explorer 11. To activate automatic updates, type "Windows Update" into the Start screen, and then select Windows Update. Click "Change Settings," select "Install Updates Automatically" on the pull-down menu and then click "OK" to apply the changes.
To review any installed Internet Explorer updates, open the Windows Update window, and then click "Installed Updates." You can also remove any updates by selecting an update and clicking "Uninstall."
Microsoft does not allow you to upgrade to Internet Explorer 11 in Windows 8.