To set the icon of any drive (hard disk, cd rom or anything else) with a letter (C:\ etc.), run REGEDIT (Start -> Run -> regedit)
Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
If one doesn’t already exist, create a new KEY called “DriveIcons”. Under this key, create a new key with the letter of your drive.
I.e. C for your C:\ drive.
To change the icon for that drive, create a key inside that one called DefaultIcon and set the path of (Default) to the location of your icon
eg C\DefaultIcon\
then (Default) = D:\Documents\C Drive Icon.ico
To change the name of that drive, create a key in the drive letter one (eg C\) called DefaultLabel and set the (Default) to what you want the drive to be called.
