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Windows 7 not detecting mouse or keyboard
I installed Windows 7 a few days ago, and it was working perfectly. Yesterday, my brother borrowed my PSP charger, and so I hooked it up to my computer to charge it.
After connecting, it automatically went into USB mode, which I ignored as it'd resulted in no problems on xp/vista.
However, after the drivers automatically installed, my keyboard and mouse stopped functioning, and my PSP disconnected from my computer (couldn't read).
My keyboard and mouse work fine, and the motherboard can apparently detect them (at least the keyboard, since I can enter BIOS), and another computer can detect them without problems. When Windows 7 loads, though, the lights on both turn off, and neither is responsive (Have also tested this with other functioning mice (mouses?) and keyboards.)
Any ideas and help would be greatly appreciated. Keep in mind that I have no method to input commands. Safe mode results in the same problems.