I’ve successfully been able to upgrade 7 Pro to 7 Enterprise, and 7 Pro SP1 to 7 Enterprise SP1. I know you can’t go from SP1 to RTM, and I haven’t tried going. Q. Can I upgrade from Windows 7 Professional to Windows 7 Enterprise? - 28 Apr 2011; Q. Can I upgrade from Windows 7 Professional to Windows 7 Enterprise. Upgrade OEM Windows 7 Pro to Windows 7 Enterprise. with a Software Assurance only license to upgrade OEM Win 7 Pro to Win 7. it into the Win 7 Pro. How do I upgrade from 7 Pro to 7 Enterprise?. Win 8 Release candidate 8400. so I have to buy Windows 7 Pro machines and then upgrade. Hi Matteo, Upgrade from Windows Vista to Windows 7 is not called Windows Anytime Upgrade. It is an inplace upgrade. See this table: Upgrade from 7 Pro to 7 Enterprise. Create and make a Win backup image so you can start over if. so I have to buy Windows 7 Pro machines and then upgrade. We have roughly 350 desktops and laptops on Windows 7 Pro OEM. Upgrading to Windows 7 Enterprise. we want to upgrade we should be able to go to Win 7. We would like to upgrade to Windows 7 Enterprise from Windows 7 Pro to take advantage of the multilanguage pack. Do we really have to do a clean install? I would like to upgrade windows 7 professional to enterprise edition. On my new Samsung slate 7 tablet i have already preinstalled windows 7 pro EN (OEM). IT Pro Career Center. Windows 7 Upgrade Paths. Updated: June 17. Repair-In-Place Upgrade to Windows 7 Enterprise. Enterprise. Home Basic.