[Wizelton]

My Western Digital 1 Terabyte External Hard-drive has not been working properly on my computer ever since I installed Windows 7. When I plug it in, it shows up under device manager, and when I go to Computer-Manage-Disk Manager, it shows up there too, but it does not have a drive letter. When I attempt to assign a drive letter, it says:

The operation failed to complete because the disk management console view is not up-to-date. Refresh the view, or restart your computer, etc.

After refreshing and restarting my computer, nothing changes. The drive still doesn't show up in my computer and it still doesn't allow me to assign a letter. Feeling desperate, I tried formatting the drive. After-which an unexpected error occurred, and nothing changed.

This drive works perfectly on my desktop, my brother laptop (which has Windows 7 installed on it) and my friend laptop. In fact, it works on just about every other computer EXCEPT for mine.

Is it a drive issue? My brother's laptop came with Windows 7 pre-installed. My system is a Dell XPS 1330, that came with Vista installed on it. The problem occurred after I did a clean install (not upgrade) to Windows 7 with the disc I bought. If anyone can help please let me know, I've been searching and searching for solutions to this problem to no avail.

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If it's a portable drive (usb powered, no mains adapter) it could be there's insufficient power available from the usb port on your PC. Try it with all other USB devices disconnected. If it works like that, it's definitely an insufficient power problem. I have the same problem with my Seagate Portable; it works fine on my laptop (the only other USB device is a mouse) but won't work on my desktop PC which already has 5 other usb devices attached.

[phillipcorcoran]

If it's a portable drive (usb powered, no mains adapter) it could be there's insufficient power available from the usb port on your PC. Try it with all other USB devices disconnected. If it works like that, it's definitely an insufficient power problem. I have the same problem with my Seagate Portable; it works fine on my laptop (the only other USB device is a mouse) but won't work on my desktop PC which already has 5 other usb devices attached.

[Wizelton]

It connects to a wall outlet, it's not a flash drive, it's a large external hard drive. Thanks for the reply though.