After a few months, when he officially announced Windows 8.1 Preview and availability free this version to the public, microsoft also announced that users will be upgrade from Windows 8 to Windows 8.1 Preview will not be further Windows upgrade to Windows 8.1 8.1 Preview RTM (Final version) but will first have to reinstall Windows 8 and only then can OS upgrade (Which means loss Settings and customization made and also and applications installed in the system).
If your and you're among users who Upgrading from Windows to Windows 8 8.1 Preview, And you want after its release, you can upgrade directly to Windows 8.1 final (Without having to reinstall Windows first 8 and without losing data, settings, and programs installed on your computer), you can do this quite simply using Windows ISO Disc Image Utilities (Or more generally, Winisoutils).
Winisoutils It is a suite of Free software which allows image manipulation install the operating systems Windows, To free some restrictions Microsoft included in them.
One of the programs included in Winisoutils, namely cversion.ini Removal UtilityAllows deleting file cversion.ini the installation image of Windows, this file is responsible for The definition of upgrade allowed for the system (if your version does not match the information on file, the upgrade can not be performed unless Fiser is changed manually by the user or deleted all of the installation image).
How to use cversion.ini Removal Utility?
- run the application and select ISO image to install Windows from which you want to delete the file cversion.ini (In this case, 8.1 Windows RTM)
- The process will take only a few seconds (at end it will display cversion.ini removed), Without the need ISO image content extracting and its reconstruction
After deleting the file cversion.ini from Windows installation image 8.1 RTMYou can create a disc (DVD) installation or Bootable USB StickThen you can install Windows over Windows RTM 8.1 8.1 Preview without encountering any problems (and also, you will keep your settings, files and applications in the system). Success!
Note: Winisoutils includes utility ei.cfg Removal Utility that allows convert an ISO image to install a Windows system into a universal installation image by removing ei.cfg file, thus the user has the option to select when installing edition OS (Home Premium, Pro, Ultimate, etc.).
STEALTH SETTINGS - How to upgrade from Windows to Windows 8.1 8.1 Preview RTM