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25 Most Popular Windows Tips: The Best Explained and Worst Debunked
Posted 01/02/2009 at 04:02:52pm
Do NOT alter that attribute. That will NOT help your system performance and will only cause you problems in the future. Do NOT mess with that file attribute, it exists for applications to mark temporary files.
If you don't want a drive or folder indexed, use the Indexing Options control panel. Of course, if you disable the Windows Search service then none of this matters anyway. But disabling that is a myth, it will only serve to make the Explorer slower.
If you want to learn more, read this:
http://blogs.msdn.com/e7/archive/2008/10/13/windows-desktop-search.aspx