I have a legal copy of Windows Vista Home Prem 64-bit OEM in German. I am thinking about upgrading to Windows 7. I would like this time to buy an english version (Last time, I got a german by mistake). In Amazon:
- Windows 7 Home Premium 64 bits OEM version is 91,95 €
- Windows 7 Home Premium 64 bits Upgrade Package is 119.99 €
Is it possible to upgrade from a german copy of Vista to a English copy of Windows 7?
OEM stands for "original equipment manufacturer". I guess since Amazon sells these copies, it must be legal for me to buy them. Moreover, since an operating system updates for free, I assume I would end with the same OS.
Is there any differences bettween buying the Upgrade Packgage or the OEM besides price?