For years, a widespread misconception existed that Adobe had released Photoshop CS2 as "freeware". In reality, Adobe disabled the in December 2012 due to a technical glitch. To ensure that legitimate owners of the software could still reinstall it, Adobe provided a special version of the installer that did not require online activation, along with a generic serial number . Windows Serial Number: 1045-1412-5685-1654-6343-1431 Mac OS X Serial Number: 1045-0410-5403-3188-5429-0639 [Locked] I thought CS2 is Free? - Adobe Community