Mega 2560 - can't install drivers

Win 7 64bit.
First connection board.
Looks like v1 or v2 (atmega8u2)

I cant install drivers,even if i force manual choose from old drivers folder.

I'm newbie with arduino,but not with atmega...


Not all of us can see your pictures.
Modify your post;
click Additional Options below the Reply box;
Browse to your locally stored pictures;
Attach them.
Click Post.

I know,but just click onto pictures, will be open in new window.

error2.JPG

Solved.

Previously i download zip version of ide, now i downloaded exe version with installator and drivers install automatically.