You can change the label of iManage Drive (M:) to some other letter by doing the following:
In Windows Explorer, right-click on M: and select Rename.
If an Invalid drive label error message is displayed and you aren't able to rename the label, set C: drive as the volume name by doing the following:
Startup cmd window as administrator
Run the label command as shown below
C:\>label /MP C:
Volume in drive C: is *****
Volume Serial Number is
4217
-C238
Volume label (
32
characters, ENTER
for
none)?
Delete current volume label (Y/N)? Y