USB drives can appear as 'Removable Drive' or as 'Local Drive'. My USB Drive Letter Manager solves all this. To get persistent drive letters for external drives assign one exclusive letter per drive. XP with SP3 assigns E: again to the USB drive, even E: is used as a network share. USB drive is removed, a network share at E: created, the USB drive reattached. The Service Pack 3 fixed it too (more or less). ' a problem' and since December 2007 a hotfix is available (WindowsXP-KB297694-x86-ENU.exe). XP has no problem assigning a drive to letter which is currently used as network share! Microsoft knows that this is Network and substs drives are completely unconsidered by XP here.
The former assignment just doesn't exist anymore. When this happens the former assignment is overwritten and the first drive gets the first available drive letter again even its former drive letter is available when it's being attached. But the drive letter is not reserved while a drive is not present and therefore reassigned to another drive if required. So when a drive is attached again it gets the same letter as before. Windows can save exactly one assignment per drive letter.
The search goes upwards in the alphabet and starts at 'A' for floppy drives, at 'D' for CD-ROM drives and at 'C' for all other types. To get rid of the 'first free letter assignment' I wrote the USB Drive Letter Manager which works under Windows 2000, XP and higher.įor a drive which XP has no drive letter assignment stored it assigns the first available drive letter. When the USB has no USB serial then this happens again if it's attached to a different USB port. Plug'n play starts up a assigns the first available drive letter. In contrast a card reader stays attached and only the card is plugged and unplugged, so the drive letters stay.īecause it's drive and media in one, each time you plug a pen drive for the first time the Windows Therefore the drive letter comes and goes with it. Here are some problems and solutions:Īn USB pen drive (also called 'flash drive', 'memory stick' or in german 'USB-Stick') is drive and media in one. There are many possible problems with USB drives. This page is available in German language too
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