# Recommend You Run It as Administrator on Vista+
Though it can work under Windows Vista+ without UAC prompt, but we still recommend you run it as Administrator on Vista+ to get the size of more system resources
. If you have not the permission to count the size of the resource, 1Tree Basic will display its size as "Cannot Compute Size".
# Register License
you have paid the license fee, you will get the license key INSTANTLY via email!
Please click 'Input License Key' menu item under <Gets your license.> button on the main interface to input or paste the license key EXACTLY as shown in your license email.
if registered successfully, you can find your license information on the "About..." interface.
# Retrieve License Key
the license key? Don't worry. It's easy to retrieve your license key of 1Tree Basic. Just click 'Retrieve License Key' menu item under <Gets your license.> button on the main interface.
# See Resource Size
started, 1Tree Basic will load all drives and the first level resources of the smallest size used drive. Clicking a resource (drive/folder) will load its first level resources (files/folders).
Also, you can see the size tree for the remote computers by the mapped network drives (do not forget turn on the related switch on the Preferences interface).
# Perform Operations
you can perform some operations for the selected resource (drive, folder and file) by clicking toolbar buttons or context menu items, such as Permanently Delete, Move to Recycle Bin, Copy to, Rename, Move to, Copy Full Path, Run, Open and Display Property.
# Set Preferences
also provides you with a few options to customize the interface, such as Tree Font, Toolbar Location and Data Separator (splits the name and size for each resource), Show CD / Network Drive(s). And you can preview the effect for Tree Font and Toolbar Location options before save them.