If your maps are the newstyle ".gmap directory" type it's simple.
On a windows 7 system your maps are in the "Maps" folder using the following path.
C:\Users\username\AppData\Roaming\Garmin\Maps
You can move all the .gmap directories to any location on your system you like.
Then you create a shortcut for each re-located .gmap directory and place the shortcuts (pointers) in the "Maps" directory where the original .gmap directories were originally loacted and the Garmin tools will find the maps just fine.
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