Downgrade windows 7 ultimate to home premium

Posted on 28. September 20113. October 2011By JoshNo Comments on Downgrade Windows 7 from Enterprise/Ultimate Edition to lower Edition
Windows 7 does not enable individuals to “downgrade” or convert from an extra premium and more expensive edition to down-level, more basic and also much less expensive edition. For instance, it’s difficult to downgrade from Windows 7 Ultimate to Windows 7 Professional, or from Windows 7 Professional to Windows 7 Home Premium or Home Basic.

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Windows 7 SKUs or editions have actually a pecking order as below:

Starter → Home Basic → Home Premium → Professional → Ultimate ( → Enterprise )

Upgrade is just possible one-means from the lower edition to greater edition of Windows 7, and also not the various other way. If user attempts to perdevelop an in-location upgrade to downgrade to a lesser edition of Windows 7, an error similar to listed below will certainly be displayed at compatibility report:

Windows 7 Ultimate cannot be upgraded to Windows 7 Home Premium. You deserve to choose to install a new copy of Windows 7 Home Premium rather, but this is different from an upgrade, and does not save your records, settings and also programs. You’ll need to reinstall any type of programs making use of the original installation discs or records. To save your files before installing Windows, back them up to an external area such as a CD, DVD, or external difficult drive. To install a brand-new copy of Windows 7 Home Premium, click the Back switch in the top left-hand also edge, and pick “Custom (advanced)”.

The refusal of Windows 7 to downgrade reasons numerous teams of world some headache, particularly once user doesn’t want to shed and also wipe off existing programs set up. For example, individuals that installed Windows 7 Ultimate during beta or release candiday phase of Windows 7, but currently obtain a Windows 7 Home Premium or Windows 7 Professional license. The instance have the right to additionally use to user that installs Windows 7 Ultimate or Professional edition, yet currently desires to go legit by buying or being offered a gift of Windows 7 Home Premium license. End-customers also need to go via the hassle of backup all information papers when clean install is required.

Microsoft most likely forbids downgrade for a reason, such as opportunity of corrupting or messing the operating mechanism and complexity affiliated in such downgrade. For user that should percreate in-place downgrade, there is a workroughly trick that can force Windows 7 setup installer to allow “upgrade” or downgrade from uplevel edition of Windows 7 to downlevel variation of Windows 7, while retaining all mounted application software program, motorists and also migrating all records, music, video, shortcuts, bookmarks, favorites, and personal data records or settings.

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On existing Windows installation, run Regisattempt Editor (RegEdit).Navigate to the following registry key:HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionIn the best pane, readjust the worth information of EditionID and also ProductName to reflect a minor edition of Windows 7.

For example, to fool OS to think that it’s one more edition of Windows 7, hack the registry essential to the complying with worths as below:

Initial Enterpincrease Edition RegistryProfessional Edition Registry

Note: The ProductName and EditionID need to have actually the exact same name with the Windows 7 operating system name shown in the time of OS selection on the installation DVD. Some Windows 7 installation DVD may usage “Windows 7 Home Premium” as OS name. See the hack to allow Windows 7 OS edition selection during setup by disabling ei.cfg to create global Windows 7 installer ISO.

Start Windows 7 installation by inserting Windows 7 DVD disc via the reduced edition right into the disc tray, or mount the Windows 7 ISO photo into a virtual drive.Select Upgrade as form of installation. Then, continue to install Windows 7 as per normal.

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You deserve to download some Windows 7 ISO’s from, however you will need an official Product Key for the set up freshly edition.