I have an old Sony Vaio model VPCEA16FG (Intel i5@520M, 6GB DDR3 RAM) and I am getting atikmdag.sys BSOD error every time I start my windows.
I have looked in other forums, tried the EXPAND command (EXPAND.EXE atikmdag.sy_ atikmdag.sys) and replaced the atikmdag.sys file in system32/drivers...