As the beta patch is only copy'n'paste even a 'non-expert' can safely implement it, as long as one is able to find and open a directory and has a free unpacker like i.e.7-zip installed.
Returning to original is even easier, just let steam verify your installation and voila, you are back were you started..
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Win 7/64 Ult.; Phenom II X6 1100T; ASUS Crosshair IV; 16 GB DDR3/1600 Corsair; ASUS EAH6950/2GB; Logitech G940 & the usual suspects

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