Microsoft have finally expired the official early previews of their latest OS, Windows 8, of which have appeared in May 2011, although that was a leaked first copy of Windows 8. The first official preview of Windows 8 however, was released in September, (the Developer Preview), followed by a February 2012 release, in the form of a Consumer Preview. The Developer Preview was originally set to expire in February 2012, at the same time as the Consumer Preview was released, although this was extended to the 15th January 2013, the same expiration date as the Consumer Preview.
Microsoft are also said to be cutting the very cheap upgrade price form older versions of Windows to Windows 8. Prices that are still $40 this month for Windows 8 Pro or just Windows 8 upgrades, are now going up to $200 for the Pro version, and $120 for the standard copy of Windows 8. These prices are going to go up on the 1st February, and they are significantly more than the ones that are still in use this month. If you are likely going to upgrade to Windows 8 future, I would definitely recommend doing it before this month is over, as there is no going back for the discount.
But what are the actual consequences facing users who are still using the Preview versions of Windows 8? If they do not upgrade for $40, or buy a new serial key, their computer will restart every two hours. I can tell you from experience that this gets extremely annoying when you are trying to work on something. The operating system at least has the grace to warn you five or ten minutes before the restart, to allow users to save their work.
Although I will not be upgrading to Windows 8, I would advise you to, as after January the price tag will become rather more daunting, and if you are still on one of Microsoft‘s previews like me, the two hour restarting does become extremely irritating and tiresome when you are working on something.