ndiswrapper make my computer hang when restart

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ndiswrapper make my computer hang when restart. It's ok while i did not installed any inf file(i use laptop acer 4315, wifi atheros). But when i install it it make hang when i get in on detecting hdd, cdrom, momory ram (usually when u want to get in to bios like: press F2 to setup F12 to blablabla something like that) could you tell me why ndiswrapper can make my laptop hang? ndiswrapper run correcly, that problem when i restart it but not when i shut down and on again.