Techradar reports that the Windows 8 upgrade registration is now open

Bit by bit, Microsoft is rolling out its new Windows 8 operating system. Last week, it was released to manufacturers and Action Pack subscribers got their hands on it Monday.

Though the general public must wait until October 26 to pick it up, those who purchase a Windows 7 PC between June 2, 2012 and January 31, 2013 can register for Windows 8 at a cool $14.99 (£9.54).

Microsoft announced the deal - a promise it made in May - in a Tweet Monday.

  Windows 8 upgrade registration now open