My HP laptop has recently stopped recognising all memory sticks and my external hard drive (they used to work!). When plugged in the computer makes a "blump" noise to show a device has been connected but the devices do not appear in my computer and are non accessible. My brother has exactly the same laptop as me (but with vista) and both the memory sticks and external hard drive work fine. Please advise!
This is because your USB ports has been disabled! to enable just follow these steps,
To re-enable a disabled port:
1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate, and then click the following registry key:
4. In the right pane, double-click Start.
5. In the Value data box, type 3, click Hexadecimal (if it is not already selected), and then click OK.
6. Quit Registry Editor.
I had the same issue and it turns out my windows 7 install somehow didn't include 1 INF file that allows usd mass storage devices to work: usbstor.inf
once I got a copy of that magically everything works properly. so to help everyone else out do the following:
copy the text below the **
paste the text you copied
save it as usbstor.inf
copy that to the windows\inf directory
uninstall any usb mass storage devices that are not recognized
unplug the usb mass storage devices you just uninstalled
plug them back in
Sony.Mfg = "Sony Corporation"
USB\VID_054C&PID_0010.DeviceDesc = "Sony Digital Camera"
USB\VID_054C&PID_0022.DeviceDesc = "Sony USB HiFD Drive"
USB\VID_054C&PID_0023.DeviceDesc = "Sony USB CD-R/RW Drive"
USB\VID_054C&PID_0024.DeviceDesc = "Sony Mavica Digital Still Camera"
USB\VID_054C&PID_0025.DeviceDesc = "Sony USB Memory Stick Walkman"
USB\VID_054C&PID_002C.DeviceDesc = "Sony USB Floppy"
USB\VID_054C&PID_0032.DeviceDesc = "Sony Memory Stick Reader/Writer"
USB\VID_054C&PID_0037.DeviceDesc = "Sony MG Memory Stick Reader/Writer"
USB\VID_054C&PID_0046.DeviceDesc = "Sony USB Network Walkman"
USB\VID_054C&PID_004A.DeviceDesc = "Sony USB Memory Stick Hi-Fi System"
USB\VID_054C&PID_0056.DeviceDesc = "Sony MG Memory Stick Reader/Writer"
USB\VID_054C&PID_0058.DeviceDesc = "Sony MG Memory Stick CLIE"
USB\VID_054C&PID_0069.DeviceDesc = "Sony Memory Stick Reader/Writer"
YEData.Mfg = "Y-E Data, Inc."
USB\VID_057B&PID_0000.DeviceDesc = "Y-E Data USB Floppy"
USB\VID_057B&PID_0001.DeviceDesc = "Y-E Data USB Floppy"
USB\VID_057B&PID_0010.DeviceDesc = "Y-E Data USB Memory Stick Reader"
Iomega.Mfg = "Iomega Corporation"
USB\VID_059B&PID_0001.DeviceDesc = "Iomega USB Zip 100"
USB\VID_059B&PID_0030.DeviceDesc = "Iomega USB Zip 250"
USB\VID_059B&PID_0031.DeviceDesc = "Iomega USB Zip 100"
USB\VID_059B&PID_0032.DeviceDesc = "Iomega USB Bus Powered Zip 250"
USB\VID_059B&PID_0060.DeviceDesc = "Iomega USB Click!Dock"
LaCie.Mfg = "LaCie"
USB\VID_059F&PID_A601.DeviceDesc = "LaCie USB Hard Drive"
USB\VID_059F&PID_A602.DeviceDesc = "LaCie USB CD-R/RW Drive"
TEAC.Mfg = "TEAC Corporation"
USB\VID_0644&PID_0000.DeviceDesc = "TEAC USB Floppy"
USB\VID_0644&PID_1000.DeviceDesc = "TEAC USB CD-ROM Drive"