Sorry my bad english. I donate Windows 8 pro time and use two key different machines (desktop and laptop). I Backup keys before upgrading Win 8.1 and then waiting this release aeroglass. Machines is the same, but licence.key doesn't work either machine after update Windows 8.1 Pro (and now finally when new aeroglass published). Desktop Windows 8.1 Pro with media center x64 Laptop Windows 8.1 Pro x64 Is this new aeroglass need new donation? Everything else working perfect! Good job!