Services perform tasks in the background. Windows has scores of services running all the time. Most are necessary, some are optional. For more information on Windows Services, see www.blackviper.com
The Indexing Service builds an index of your files (Documents, text files, etc.), in order to find them faster IF you search for them. But if you do not frequently search for files on your computer (most people do not), you may be losing more than you gain!
Stopping the indexing services can speed up your computer system.
Click: Start -> RUN and type: services.msc and hit: return
scroll down to Indexing Service, double-click, stop it, and set to disabled.
Click: Start and type: services.msc and hit: return
scroll down to Windows Search, double-click, stop it, and set to disabled.
Search for Indexing Options and click on it in the search results