Here are answers to some common questions about updates. For information about updates and your privacy, read the Windows Update privacy statement
Updates are additions to software that can help prevent or fix problems, improve how your computer works, or enhance your computing experience.
For Windows updates, including those for Internet Explorer or programs that ship with Windows, go to Windows Update in Control Panel:
Open Windows Update by clicking the Start button , clicking All Programs, and then clicking Windows Update.
In the left pane, click Check for updates.
We recommend that you turn on automatic updating
so Windows can install new updates as they become available. For more information, see Turn automatic updating on or off.
For information about finding updates for the Microsoft Office System, see Update Microsoft Office. For updates for other programs and devices that you use, check the website of the publisher or manufacturer.
Yes. Updates do not take effect until they are installed, but to install updates, you must first download them to your computer. You can choose to have Windows automatically download and install updates for you, automatically download updates and notify you so you can install them yourself, or notify you to both download and install new updates yourself. For more information, see Change how Windows installs or notifies you about updates.
You can set Windows to automatically install important and recommended updates, or to install important updates only. Important updates provide significant benefits, such as improved security and reliability. Recommended updates can address non-critical problems and help enhance your computing experience. Optional updates are not downloaded or installed automatically. For more information, see Turn automatic updating on or off and Change how Windows installs or notifies you about updates.
In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer.
If any updates are found, click View available updates.
Select the optional updates that you want, and then click Install.
If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
For more information, see Change how Windows installs or notifies you about updates and Install Windows updates.
As often as possible. Updates are the best way to prevent or repair known problems, and they can enhance the security of your computer. For Windows, the easiest way to install updates is to turn on automatic updating. Windows will install new updates as they become available. For more information, see Turn automatic updating on or off.
Your computer might be at risk or you might experience unnecessary problems with Windows or your programs.
For Windows and programs that ship with Windows, such as Internet Explorer, yes. Just turn on automatic updating. For more information, see Turn automatic updating on or off. For other programs, check the website of the publisher or manufacturer to see if you can get updates automatically.
Updates from Microsoft for Microsoft products are free as part of maintenance and support services. For other products, check with each program publisher and device manufacturer to see if updates are free of charge. Depending on your Internet connection, standard local and long distance phone charges and Internet service charges might apply while you download and install updates from any publisher or manufacturer.
Typically because these updates require you to restart your computer before they can take effect. You might, for example, need to install an update for Windows Update itself before you can check for other updates for your computer. In other cases, an update might be a new version or a service pack for software that you're currently running. To make sure that your computer is ready to install these updates, you must first install all important updates for your computer. After you've installed important updates, Windows will ask if you want to install the stand-alone or "exclusive" update by itself.
Yes. Updates apply to Windows and your programs, regardless of who uses them.
No. You need to turn on automatic updating or check for updates for each computer separately. For example, computers running different versions of Windows need different updates. Windows detects which updates apply in each case but you can't, for example, apply updates for Windows XP to a computer running Windows 2000.
You can remove some updates, but not updates that affect important operating system files. You should only remove an update if you're sure that it's causing a problem.
For more information, see Remove an update.