Unfortunately the problem persist, there is the same screen, the same log. Then I`v tried to downgrade Windows from W7 to WXP on my bot machine, but it still doesn`t work, there is still the error on start with the same log. After installing prerequisities from you ( it means .net framework 4) , I installed .net framework 3.5 therewithal, but it still doesn`t work. Shall be the problem in hardware? ( new Dell Optiplex 390, socket 1155) . I`ve never seen the error like this on my old machine.