Hi. I was install to a lot of laptop and desktop some win7 custom release packages like win7 32&64 bit English and Greek win7 sp1 32&64 bit English and Greek And to some laptop i install it like dell, toshiba, hp it work fine but it has keyboard lag that with the default win7 pre-installed software DOESN'T HAVE. Why this is going on and how i can find one win7 release(Greek if i can) that don't has this issue/problem. Some of the laptop i try was the Dell Inspiron Q15R Toshiba Satellite C660-2ML Hp pavilion g6 Dell inspiron q17r 7110-8128 And some others laptop don't have any problem as keyboard lag or any other. So which is the fault of that STRANGE issue/problem/bug??? Is there an issue that caused by windows loader program because to all of these laptops after the complete installation of win7 i install the windows loader 7.