Remove Unnecessary Programs

 Every program installed on your computer takes up space, and some programs slow your computer down regardless of whether you use them or not. So if you installed a program you do not intend to use again, it’s a good idea to uninstall it. You can do this using either the Add/Remove Programs applet in the Control Panel or the Uninstall icon in the program’s folder in the Start Menu.  You might notice leftover entries, in Add/Remove Programs, of programs that have already been uninstalled. You can remove these by editing the Registry. Go to  HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionUninstall in the Registry, and under this key, look up the sub-keys containing the unwanted entries and delete them. You can also download and use programs such as CCleaner (available at www.ccleaner.com), which does the same thing and also removes all traces of uninstalled programs.