[Q] Windows 7 x64 doesn't recognize my x8 ?

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http://forum.xda-developers.com – Guys i bought i new computer it has Windows 7x64, and i've installed the latest flashtool, installed the drivers in it. In flashtool the device is recognized, but when i try to flash a kernel it says USB device is not recognized or flashtool will start to flash and stops at checking header... I've installed all the drivers and i don't know what to do. Any help is appreciated. (HowTos)