Windows 10: i can't activate my new desk top it's is a dell voetro 3910 saays i dont have code...

i can't activate my new desk top it's is a dell voetro 3910 saays i dont have code why beaats me its new

:)

 

windows 7 on desk top and lap top and wife's 365

My question,

I have an old Dell lap top and I have an old desk top, the Dell has windows 10 and my desk top has windows 7. I bought her a new lap top a few years back and it has windows 365 on it, is there anyway that I can piggyback onto her 365 with my other two computers?

Thanks to anyone who can look at or even better, come up with solution.

Tom M.

 

Windows 10 will not activate Error code 0x803F7001

thanks
I activated my Windows 10 from product key Windows 7

 

Desk Top Windows 10

Thank you DaveM121. I`m sorry I didn`t make it clear (1932 is my date of birth so am a little slow on new things) My problem is how to move items from my desk top to the next screen and make them into apps and then using your tip make some of
them into tiles using `Pin to Start`. I have a new computer with windows 10 my old one was windows 7 and I have managed to move desk top items from the old windows 7 computer screen over to show on the new windows 10 screen. I`m happy with this but
I can`t see how to make them into apps ? Then pick out some of them and make them into tiles. Maybe it`s not possible. Many thank`s David1932