I am still trying to delete all of System Volume Information on my non-Windows drives. I just tried the 'attrib' DOS commands describes above, and it still does not get rid of everything (all of System Volume Information). Of course I ran CMD in Administrator mode. Here it the scoop:
The 'attrib' commands simply change the attributes of the folder, and all sub folders & files. I ran HELP on Attrib to see what these options do. I was able to delete files in the root of System Volume Information, but not the sub folder - EfaData, and I never could delete the file named SYMEFA.db in the sub folder EfaData. On some drives, the total size of the System Volume Information folder is zero, and on others it is 2 GB! I have lots of drives.
When I try to delete the file SYMEFA.DB, I get " The Process cannot access the file because it is being used by another process.". Nothing else is using this file or even this drive. But just to make sure, I powered the drive off, saw it removed from my system, and then powered it on again. I still cannot delete it. I then tried going up one level and 'rd EfaData' and got the message "The Directory is not empty."
So, the bottom line here is that this whole process (with the Attrib and RD DOS commands) does not delete System Volume Information either!
Vincent 05-08-13