Can I swap Windows 10 editions between my Devices. - Microsoft Community

consider 2 laptops.

laptop : old laptop came windows 7 oem. upgraded 8 pro via retail key , later upgraded to 10 pro.

laptop b : new gaming laptop windows 10 home oem.

can use retail key installed on laptop upgrade laptop b windows 10 pro. yet want windows 10 in laptop a. can manage upgrade windows 7 oem windows 10, don't mind if laptop have 10 home.

yes, can, but, if laptop came windows 7 home, entitled windows 10 home.

you can't move license on laptop b laptop a, because oem license.

so, should let stay is.

on laptop b, need upgrade windows 10 pro, using diagnostics key:

upgrade windows 10 pro using following default product key:

vk7jg-nphtm-c97jm-9mpgt-3v66t 

review instructions how perform easy upgrade using default key:

how perform easy upgrade in windows 10 

after upgrading, proceed enter windows 8 pro product key.

click start > settings > update & security > activation > change product key enter new product key click next to activate 

you might need contact chat support, if internet activation not work:

activate windows 10 license via microsoft chat support

you need restore laptop windows 10 home, use product key on coa sticker reactivate:

windows 7 came preinstalled on computer, how find product key?

the product key located on coa sticker attached bottom of laptop or in battery compartment. in rare cases can found in memory compartment. tower systems, @ top or side of system unit. it looks following:

if encounter problems, need use chat support reactivate it.

Windows / Windows 10 / Install, upgrade, & activate / PC