When I boot up from sleep mode on Vista I get a message that there is a problem with one of my USB connections. I suspect it's related to an 'unknown device' in device manager. Nothing is connected to any USBs.Should I uninstall it and reboot?
and rebooted upon which it reinstalled but it's still showing as an unknown device in Device Manager.
USB "Unknown Device" is a default driver windows installs when it is unable to identify a device connected to the USB Bus Try the uninstall and reboot or you can use the right click option "scan for hardware changes" on the "USB Controllers heading" after uninstall saves a reboot if it persists check for an update to your motherboard chipset drivers Cheers HC
Nothing's connected via a USB though.
Do you have anything connected to the motherboard USB headers? A card reader perhaps or outlets to front USB? It may be an internal device rather than an external one that is being picked up.
Works fine apart from this message upon reboot from sleep mode.I've not modified it at all.
So if you boot from cold it doesn't show the message but if you boot from sleep it does. Is that correct?
Try looking in the BIOS for USB settings. There may be one which says Enable Lecacy USB devices. You could try enabling or disabling that, depending on what it is set to ATM.
Changed it to Disabled then booted up.Unknown device in DM had disappeared, however, when I put it into sleep mode I got the same message re 'Unknown Device' taking it out of sleep mode and it has reappeared in DM as well.Just changed BIOS back to enabled to get back to where I was.
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