I have a removable USB HDD that I use for second-level backups. I plug it in to my system only for this purpose. Almost every time I plug it in, I have to use Administrative Tools to re-assign a drive letter. Is there anything else I should be doing so that Windows keeps that drive letter persistent?
If you assign or change the drive letter and paths in Disk Management with the USB drive mounted, it should persist from mount to mount. Most experts recommend that you pick a "higher letter" M through V for that assignment (and don't pick the same letter for multiple drives to avoid collisions).
HTH,
--Ed--
See this HowToGeek Article for more details on what to do and how to make this happen: How to Assign a Persistent Drive Letter to a USB Drive in Windows
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