Drive Letter Limit?

  olyman 05 Aug 09

Is there a limit to the number of drive letters allocated to drives?
I have just bought a USB SDHC Card Reader.
I previously had drive letters allocated from C to M
When I plugged it in I found I had lost a partition on my external HD as the device had used one of the partition letters - the external HD had not been switched on.
In Computer Management I found that the external partition had been changed to N but it didn't show up as such in Computer. I got the partition access back by changing the drive letter to it's former designation . The USB reader then showed up as N in Computer management but was not visible in Computer.
I have now changed the new device letter to A as I have no floppy drive.
I can now access all drives and card readers from Computer. I should explain that I have two internal drives with partitions C,D and E, a built in Card Reader using G,H,I and J, external drive K and L, two DVD drives F and M and now the new Card Reader A. All now show in Computer but Reader A does not Auto Run.
As I will be using the Reader for photo access so I really need it to Auto Run.
Any suggestions or explanations would be welcome.

  OTT_Buzzard 05 Aug 09

Almost sounds like a power supply issue???

  olyman 05 Aug 09

AutoRun now works, not sure why!
All the drives are working so power not a problem.
Still puzzled by having to allocate to the unused "A" designation. Only"B"left now

  Sea Urchin 08 Aug 09

You may find reading through this interesting

click here

  olyman 10 Aug 09

Thanks Sea Urchin.
I now have the full alphabet at my disposal!


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