Windows Backup – The filename, directoryname or volume label syntax is incorrect.

When in Windows Backup 2008 you want to add an 2nd HDD target to your existing back-up schedule you get the error message: “The filename, directoryname or volume label syntax is incorrect”

The solution is:
Attach your 1st harddisk.
You can only add an extra harddisk to your existing back-up schedule when your 1ste harddisk is also connected to the server.

Relaunch the wizard and you wont get the error!