How can I stop "search as your type" ?

Hi

Please can you tell me how to switch off the "search results as you type" function?
I absolutely hate it. I have a Win7 x64 PC running 8GB of ram on a 256GB SSD. I have documents folder of about 2.5GB. I have an email archive of 11GB of Outlook2010 .PST files and a 2GB .OST file. And quite often it trips up an pauses if you type too fast. So I would MUCH prefer for it now to show results until I've finished typing - in fact until I've hit enter would be fine!

J

P.S. Fwiw, the X1 Search directory is 1.8GB

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