@
bromanbro
It does at least according to showkeyplus there is a link somewhere on this forum or windows 7 forum
Windows Product Key Information
Product Name: Windows 10 Home Insider Preview
Product ID: Removed for privacy
Installed Key: Removed for privacy
Original Key: Removed for privacy
Original Edition: Windows 7 HomePremium OEM:SLP
OEM Key: Windows 7 OEM marker present in firmware
Couldn't really test windows 7 retail key because of the OEM marker. The way I did the upgrade using windows 7 retail key may have messed it up & confused windows 10 install. What I did was change the product key to windows 7 retail key, rebooted upgraded to windows build 10 10162 but it would never activate even when Microsoft got the activation fixed. So, what I had to do is start over and upgraded the oem version to windows 10 and it activated without any issue. Then I put windows 7 retail back on and it is also working without any issue and activated without any issue. I can tell you it was not easy to say the least.
There is one method I haven't tested.
Doing a clean install of windows 7 retail, after installing some software upgrade to windows 10 and then re-install the oem version but that could take a long time, I don't know if I am up for the challenge plus we have storms this week and maybe next week and I like the computer unplugged during that.
Primary Partition 1 would become windows 7 oem eventually
Primary Partition 2 would become windows 10 upgraded from windows 7 retail almost clean install
Logical Partition 5 would remain Xubuntu
Logical Partition 6 would remain Linux swap partition.