USB Mass Storage Issue Windows 7 x64

Welcome to the Seven Forums! texusn

Most likely since the ports are known to be working something is preventing the detection process on those particular items. For the external dock and flash drives once plugged in you should be seeing a popup for running things or viewing the file content.

The two images here what to look for when in the Disk Management for either a drive when present in the docking station or when plugging in a flash drive and displayed in the DM there. The two screens attached here will show that the drive in the external enclosure is being seen as "online" otherwise a right click to find that option rather then setting it to offline would be needed as well as right clicking a second time to assign a drive letter.

This usually is all it takes at first to see any new drive or device initialized. When opening up an explorer afterwards you should be seeing the new drive icon with the drive letter selected in view. As far as DriverMax or any other 3rd party driver locator those are generally a waste of time to begin with since this is a Windows related item not a driver concern as far as detection and automatic installation to make things active. Once detected properly you would see a prompting if any drivers are needed.

If the docking station lacks a drive inside that's all you would see since you wouldn't be installing any drivers for it. That one is ok and should be seen that way until a drive is docked where you then will see the drive itself appear in the DM.

Have you tried the flash drives(jump drives) on any other machine to see if those are working there?

One thing I did here was custom assign a particular rather loud wav file to the the "new device connected" and "device disconnected" items in the Control Panel>Sound>sounds tab there so I no longer have to looking at the screen when plugging or unplugging any usb drive or device.

Apparently the present installation is not detecting anything new like it should and may have been a bad install seen there. You can try running the "sfc /scannow" command at the Run command with the 7 dvd in the drive and see if that will help by replacing any system files if found damaged or missing as one idea.

Since you are seeing the other mass storage device present something is still working where this might be all that is needed if only one or two system files are involved. Or the one thing often overlooked is the regulation of the usb bus seen on different boards.

When going to take a usb flash for example from one system to another older case the drive will be sluggish and the owner complains of not being able to use some of the ports while having multiple devices plugged in or his own flash has to be plugged into a separate usb hub. Those are powered externally with an ac adapter.

You may have to consider that as a likely cause since you know all the drives work and the individual ports still work but not when having multiple drives plugged in suggesting the bus is being pulled down a bit. Some time back while in a Walmart I picked a small 4 port Cyberpower blue led hub that actually works llike a champ for any printer, external drive, enclosure, or flash drive plugged from simply providing an adequate level for each device.

Funny how we missed each other's own idea on using the system file checker on this! But conisder the other on adding a good hub on to see if that will provided the power level correctly to see the drives and devices work for you.

Hi, I'm having exactly the same problems as texusn.
My USB-memory stick and USB-HDD are both plugged in to my computer directly with no USB-hub. I can find both devices in the device manager but not in Disk Management. There's no difference if I have one or both plugged in. My USB-mouse and keyboard are working fine and the USB-storage devices run perfectly on other computers.
I've tried running sfc /scannow with my win7 disc in but apparantly I don't have administrative rights... However, if someone finds a solution to texusn's problem I'm sure it will help me too. :)

Hello and welcome to SF! Diadiadia

The first thought people often have is something must wrong in Windows as far as usb devices especially with external HDs and flash drives. WRONG!

Try measuring how well the usb bus itself is on the board! If you have several devices attached for example or with certain brands it seems the usb bus simply won't provide what the drive or device wants to pull from it.

I see this with different brands of flash drives on different systems where sometimes that good working hub is the only place you are able to use some of them! For flash drives 4 brands as one example with PNY left out in the cold! HP not doing much better. San Disk slow but will work. Kingston Data Travellers won out in every test between 3 or 4 desktops and even a Vista laptop.

When moving the PNY being the notorious fail around it simply would not work on one old XP build at all! When plugging the additional front or top usb ports in the drive is seen but does nothing again. A small 4 port hub being independently powered is the only place it will work!

Likewise the illuminated usb keyboard will not work as far as the illumination off of any hub. It requires being plugged into a port on the board directly. This problem catches everyone at some point with external HDs, flash drives, printers, and other devices where some are simply too fussy about where they get plugged into.