To uninstall an unwanted program from a computer running on Windows 7, go to the Control Panel of the computer, click Uninstall A Program, select the program, click Uninstall, and then click Yes if prompted. The process of removing an unwanted computer program varies depending on the version of Windows.
In Windows XP, click Start on the Windows task bar, hover the mouse over the Control Panel, and select Add Or Remove Programs from the shortcut menu. Select the specific program you want to uninstall, and then click Remove. Restart the computer if prompted.
If the program you want to uninstall does not appear on the Add Or Remove Programs page of the Control Panel but appears in the Task Manager, download and install an antivirus software such as Avast. Scan the computer for viruses, and delete those that the antivirus software detects.
Alternatively, if the program still appears in the computer after removing it, download and install a third-party application such as CCleaner. Open CCleaner, go to Tools, and select the Uninstall tab located on the left-hand side. Click on the specific program you want to remove to highlight it, and then click the Uninstall button located on the right-hand side of the window.