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USB ports not working in OS X, works in Windows

S

shima

macrumors newbie
Original poster
Hi,

When I started up my iMac the USB ports stopped working. It didn't respond at all. The weird thing is that they work at the startup when you choose between Windows/Mac OS X when holding in ALT. They also work in Windows, but not in OS X. Does anyone know how to solve this problem?
 
Sounds like some driver/software issue in the Mac OS. I would say booting up to your system disks and running an Archive and Install while Preserving User Data would be the easiest method.
 
What do you mean exactly - how do you know they're not working? What devices are you trying to use?
 
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