Use a Windows 7 Home Premium Key for Professional Upgrade Depending on when they made the purchase, most Colorado Springs consumers know if that low-price copy of Microsoft’s newest operating system is an upgrade or full version. Here’s a detailed analysis:
Product Keys & Upgrades Explained
Or, to clarify a few things: You cannot use your Windows 7 Home Premium key on this CD… A proper Professional key is required to upgrade. Unlike a normal upgrade, where the existing Home Premium is changed to Professional automatically15, this will then require what amounts to a clean installation of the new Pro version.
Upgrade Options: If you purchase a PC with Windows 7 Home Premium installed and want to upgrade it yourself, buy the Professional Edition—the forms of Vista that most buyers have today are not eligible for upgrades; windows.com/anytimeupgrade. But not all layers have this kind of support (or at least conditions may apply36);
Reinstalling: If you are moving from Home Premium to Professional, a reinstall of the operating system will be required using Windows 7 Professional installation media. This will take care of setting the system for version 25 so that works.
Practical Steps for Upgrading
Example: Back Up Data — Always backup your data before you do an OS upgrade or reinstalling
A Professional Key: Get yourself a genuine copy of Windows 7 Professional key by either buying, or figuring one out somehow.Windows 7 Upgrade (ad)
Installation Media: You will need a Windows 7 Professional installation media
Then you need to follow the installation instruction whereby format your drive if required and enter new Professional key when asked for.
Conclusion
So, in short — no, you can’t use a Windows 7 Home Premium key to activate Windows 7 Professional or vice versa. You simply need to get the right product key and do a clean installation of your desired version. Remember, to avoid problems with the law make sure you keep up on your side of licensing agreements. Windows 7 Upgrade
