On October 17, at 7 am EST (4 am PST) Microsoft is kicking off the next phase in its Windows 8.1 rollout: General availability (GA)
Starting today, users already running Windows 8 and/or Windows RT will be able to download the free Windows 8.1 update from the Windows Store. As of October 18, Windows 8.1 will be available preloaded on new devices and in boxed software form.
Those not upgrading from Windows 8 will be charged between $119.99 (core) and $199.99 (Pro) for Windows 8.1. Those running a preview version of Windows 8.1 should expect to have to reinstall their apps, while those moving straight from Windows 8 to 8.1 (without installing the preview on their devices) will not.