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Windows 7: All drives randomly disappearing from my computer.

23 Mar 2012   #1

Win 7 Pro 64
All drives randomly disappearing from my computer.

Three pc's all with the same issue. All are Dells, two are Optiplex 780's. On a domain with at least 60 other computers and well over 100 users, local and remote. All three PC's are local, running Windows 7 pro. The two optiplex's started this on Monday, the third started doing it about an hour ago.

On boot, all drives are listed in my computer and Explorer. After a few minutes, all drives, local and mapped, disappear from my computer and explorer. After a few minutes or a reboot, the drives will reappear. Any drive is able to be opened by typing its drive letter in the address bar, whether it can be seen or not.. At the same time the drives have gone missing, the control panel will also not populate. This is very random. It can be two minutes from populated to unpopulated, or it can be 20 minutes. Lets ad into this mix, thumbnails on .jpg, .pdf and other files are not showing up, where until this problem started, they were.

I am pretty confident that the drives are not going to sleep as this happens whether the computer is in use or not. I am also pretty confident that its not a sata driver, as the mapped drives disappear also.

One more thing to add: if the computers are unplugged from the network, the problem seems to go away. Possibly an issue with the domain policy?

Any ideas or suggestions are welcome.
Thanks for your time.

My System SpecsSystem Spec

06 Dec 2012   #2

Windows 7 Home Premium 64 bit


I have the exact same problem since about 2 days ago, and I don't know why. Did you find out what the problem was? I did turn off a few services, but they all seem completely unrelated to drives.
My System SpecsSystem Spec

 All drives randomly disappearing from my computer.

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