
Traditionally, downgrade rights are available only from OEM copies of Windows, those that are pre-installed by computer manufacturers. Unlike consumers or small businesses, corporations armed with enterprise licensing agreements, including the annuity-like Software Assurance, are allowed to downgrade from any version of Windows to any previous edition.ĭowngrade rights became noteworthy after Windows Vista's 2007 launch when many users, frustrated at that edition's problems, mutinied and dropped back to XP. VLSC (Volume License Service Center) is the online portal for companies that have signed volume licensing agreements with Microsoft. "What I don't know is how long Microsoft will keep XP available for download on VLSC for volume licensing customers after the debut of Windows 8," Chan added.

So we can see they are trying to strangle the life out of XP," said Kenny Chan, a technology specialist for CDW, in message earlier this month on a LinkedIn thread dedicated to Microsoft licensing professionals.

Also note that the soon-to-come Office 2013 will not support XP. One licensing expert noticed XP was AWOL. Windows XP will fall off Microsoft's support list in April 2014. Windows XP Professional, which was one of the allowed downgrades for Windows 7 Professional, was not named. the problem is that> the boot camp still only recognizes win10 or later versions and does not allow for installing win7."Instead of using the Windows 8 Pro software, you may use one of the following earlier versions: Windows 7 Professional or Windows Vista Business," states the software license agreement for the version of Windows 8 Pro that will be installed by computer makers (OEMs) on new PCs.

so, I decided to reinstall the win7 professional (clean installation) using boot camp assistants. I got tucked, so I decided to uninstall the win10 partion (using boot camp assistants). please select a bootable DVD disk" error. I also tried to solve this issue by selecting the win partion from Mac system perefrences + startup + restart. When it is done there, I tried to boot again to the windows partion (restart + alt) but the win partion disappear from the startup screen. The problem was that, I was trying to extend my win partition using desk utilities (can be done only on Mac ). First, I was running win10 (upgrade version not fresh installation) on iMac PC SYSTEM.

Thanks dear Rudegar for your concern, but unfortunately it seams there is a difference.
