82 to 85 : Search quickly,Search file contents,Close in a click,Leave the Homegroup

82. Search quickly

If you'd like to search for something in an Explorer window then there's no need to use the mouse. Simply press [F3] to move the focus to the search box, enter your keyword and press [Enter] to run the search.

83. Search file contents

There's no obvious way in the Windows interface to search the contents of files that haven't been indexed, but all you need to do is start your search with the "content:" search filter. So entering content:Microsoft , for instance, will find all documents (whether they're actually indexed or not) that contain the word Microsoft.

84. Close in a click

Hover your mouse cursor over a Windows taskbar button will display a preview thumbnail of that application window. You don't need that app any more? Then middle-click the thumbnail to close it down.

85. Leave the Homegroup

Homegroups are an easy way to network Windows 7 PCs, but if you don't use the feature then turning it off can save you a few system resources.

Click Start, type Homegroup, and click "Choose homegroup and sharing options". Click Leave the Homegroup > Leave the Homegroup > Finish.

Now click Start, type services.msc and press [Enter] to launch the Services Control Panel applet.

Find and double-click both the HomeGroup Listener and HomeGroup Provider service, clicking Stop and setting Startup Type to Disabled in each case, and the services won't be launched when you need reboot.