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Windows 7: SD Card Drive question

22 Jun 2011   #1

Windows 7 Home Premium 64bit
 
 
SD Card Drive question

I have a general question about how windows assigns drive letters. My son has a Dell laptop with Windows 7. First of all, the card reader works fine. However, I thought the drive letter was always fixed for the sd card reader. When he inserts a micro sd card and adapter in the slot, it pops up the windows info box with the header stating Secure Digital Card F:/. All is well. When he inserts a different micro sd card and adapter in the same slot, it pops up the info box with the header Secure Digital Card G:/. I don't understand the different drive letters. These are identical 2gb micro sd cards. The reason I ask is we are writing an application that stores the sd card drive in a local sqlite database upon initialization of the application. If the drive is not consistent it basically messes up our application. Any info on the multiple drive letters would be appreciated.

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25 Jun 2011   #2

W7 Professional x64
 
 

Was it immediately after you removed the last one, and did you eject the card first?
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26 Jun 2011   #3

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

Welcome to Seven Forums jhound. Does the card reader show up in disk management (Start> In search box type Computer management> Enter> Click on disk management)? If so, you can assign it a drive letter. Then any card inserted should use that assigned letter. A Guy
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 SD Card Drive question





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