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No removable drives

By romy.boreiko ·
Recently my MultiFlash memory card reader does not enable drives/drive letters in my Win2000 Pro system. In Computer Management/Disk Management, the disk(s) is/are present, but without a drive letter. If I "Add" a letter, I receive an error message which asks for a reboot since"The partition/volume is not enabled". A reboot most of the time does not provide a drive letter, but another Disk Management "Change Drive letter" process succeeds. Unfortunately the new drive(s) disappear later, generally after a reboot.
The card reader is OK - and works properly on another Win2000 computer, where, without installing anything, the proper driver letters appear. I suspect that some setting (Rigistry?) was changed by either software or Win2000 Service Packs or patches.
Any suggestions?

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by Power Natto In reply to No removable drives

The driver installation sounds "insecure". I would uninstall the driver and related software for the card reader. Reboot and then install the driver and so on exactly as instructed by manufacturer's instructions (also check maker's HP for updates).

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by romy.boreiko In reply to

I had already performed the reinstall-uninstall cycle numerous times. The memory card can still only be accessed through the described procedure. There is no additional help available on the maker's help pages. Any other suggestions?

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by Power Natto In reply to No removable drives

Did it work perfectly before an SP or patch? Does the other Win2K have the same SPs?

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by romy.boreiko In reply to

Hi,
The MultiFlash reader worked properly before. Both computers have all SPs and patches applied, and should be identical except that the working one is a laptop with less hardware/software. One difference I noticed last night is that in Disk Management the working laptop shows the appropriate disks as "Disk 3 Removable (G), Disk 4 Removable (H), etc. In the other system the disks are found and listed as "Disk 3 Removable, Disk 4 Removable, etc" and no letters are assigned. In both cases there is no other difference, regardless whether a memory card is inserted or not.
Thanks

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by Power Natto In reply to No removable drives

Presumably the connection is USB. If you have Drivers for other peripherals (cameras, off board CD-RW and so on) remove them all. Re-install the mem-card reader and see if it runs. If it does, then install the other drivers one by one, checking you card reader after each install until a conflict occurs. Because PnP is not as "hot-pluggable" as hoped some drivers now install USB monitors that can foul things up for other USB drivers (and Win2000 can manage without those monitors anyway).

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by romy.boreiko In reply to

Yes, the connection is USB. I have switched to diffeent hubs, both USB 1.1 and 2, without any improvement. I even used a memory card reader from another company, and experienced the same problem.
Unfortunately I have many USB hubs and devices and time constraints do not allow me at this time to uninstall and disconnect all of them and then reinstall/reconnect each one one at a time.
You may well be right with the suggestion that there is some driver interference that causes the "no drives" problem, but all other USB devices - including a webcam, Epson 24" Photo printer, Sony DVD writer, HP Scanner, External hard drive, two other printers, Ups work correctly.
I still suspect some registry entry or Services setting to be at least partly involved.

Thanks for trying.

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