Sick of your HD spinning and churning nonstop day after day, driving you nuts? I use XYplorer's search to find files and never need this feature. If you use a third-party search utility, then disable Vista's Search Indexer service. Here's how:
Start > Run >Services (or type "services.msc" at the run command)
Right-click on the WINDOWS SEARCH service, and select PROPERTIES
In the 'Service Status' section on the General tab, hit the STOP button
On the same tab at the 'Startup type' dropdown list, choose DISABLED
Hit the APPLY button, close the Services dialog, and save your HD.
There, I just stopped cussing.