Upgrade to FolderSizes 4

To qualify for FolderSizes v4.0 upgrade pricing, you must own a license for a previous version. Note that it can be any previous version (e.g. 1.x, 2.x, or 3.x).

You must provide the registration information associated with your existing FolderSizes license in order to proceed. You can find this information in one of several places:

  • Within the product registration / receipt that you were sent (via email) immediately after purchase.
  • Within the FolderSizes application itself (via the main menu, navigate to Help | Register FolderSizes)

You'll need both your registration name (also known as a serial name) and your registration key (also known as a serial number). Enter both values into the fields below and click "Validate Now" to proceed.

Registration name:  
Registration key: