By default humyo does not store your files on your local hard drive. If you wish to always have instant access to your data, even if you’re not connected to the internet, then you need to select the option on your files to keep a local copy (see Offline Access to files) The local cache directory is located on your main system hard disk in the following location:

XP:
C:\Documents and Settings\<username>\humyo.store\root\

Vista:
c:\users\<username>\humyo.store\root\