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General discussion

XP machine stopped recognizing USB devices -- reboot needed

by ilyaz73 Sep 1, 2010 12:33AM PDT

My XP Pro machine all of a sudden stopped recognizing any USB devices that I plug in. It seems that the only way to have the machine recognize a USB device is to reboot it with the device plugged in. I tried the reinstallation of Universal Serial Bus controllers that was suggested in http://support.microsoft.com/kb/310575, and I also tried unchecking "allow computer to turn off device to save power" for all the USB root hubs listed in the device manager, but it did not help. Now if I plugin a USB device into a port, I either get nothing at all or a message about the device not being recognize. What else can I try? Thanks!

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Most common fix I run into today?

by r. proffitt Forum moderator Sep 1, 2010 1:14AM PDT

I find the owner was running registry optimizers or tinkering with SERVICES. For example and this is only one of many services needed is that Plug and Play service.
Bob

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