Despite your best efforts, you may occasionally download a program you don't want. Below are some ways to remove it. (Note that you may not be able to remove some programs because Windows needs them to function properly.) Run anti-spyware toolsMake sure your anti-spyware software is current, and then scan your system, following the instructions on your screen. Run the malicious software removal toolWindows Vista reduces the likelihood of downloading malware in the first place because it includes Windows Defender. If you're running a previous version of Windows—and have downloaded something that is slowing your system or causing it to crash—try using the Malicious Software Removal Tool. This tool checks computers running Windows XP, Windows 2000, and Microsoft Windows Server 2003 for specific malicious software (or malware) and helps you remove it. Disable a program using Add-On Manager (for Windows Vista and Windows XP Service Pack 2 only)If your anti-spyware program and the Malicious Software Removal Tool don't solve the problem, you may be able to disable the troublemaker through Add-On Manager. 1. | Open Internet Explorer. | 2. | On the Tools menu, click Manage Add-ons. | 3. | In the list of add-ons, click to select the one you want to disable, and then click Disable in the Settings section in the bottom half of the Manage Add-ons box. Look for add-ons you didn't accept or don't recognize. | 4. | Click OK. |
 Tip Add-ons are programs that extend the capabilities of Internet Explorer—for example, toolbars or programs that let you accomplish tasks such as making hotel reservations or searching the Internet. However, not all add-ons are programs you want—for example those that redirect your search to another Web site or change your home page.
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