Disable Superfetch. Start > Run > services.msc - then right click on Superfetch and stop the service. Double click on Superfetch, and chnage the "Startup type" to "Disabled".
Change what is indexed for search. Go to "Control Panel", and search for "Indexing options". Don't search in Outlook or any other directory, except for the "Start Menu".
In Task Scheduler, disable defrag and "RACTask".
