I had trouble in renaming a mapped drive. Windows Explorer allowed me to right click on the drive and select rename. However, I discovered while I could delete letters from the name, I couldn’t enter any letters. So, I was left with an accidental abbreviation for the drive name.

I decided I would remove the misnamed drive and redo the mapping. I was surprised to see when I re-mapped the drive and typed in my preferred drive name, it reverted back to the accidental abbreviation.

I searched for a solution and learned about registry entries for Windows Explorer called MountPoints2. I found the accidental abbreviation in the “LabelFromReg” key. Editing the key to the correct name fixed my problem. As an aside, my research also indicated using this registry key will solve some issues which had existed in XP regarding the length of the mapped drive names.