Windows 10: Is it possible to upgrade windows from 10 pro 1909 OEM to 10 pro October 2020 Update

Dear


Recently Microsoft announcements windows10 1909 will the end of service next month, in May 2021.Just i want confirm my company All PCs and laptop purchased inbuild windows 10 OS Purchased on the Local Partner based on business needed.Is it possible to upgrade windows from 10 pro 1909 OEM any latest version of windows.


If itis eligible, how to deploy single shot all machine one time.

:)

 

Windows 10 pro 1903 will not update to Win 10 Pro 1909

Notes:

1) Computer originaly used Win 7 Pro OA (OEM)

2) Reformatted the HD

3) Used Win10 Pro version 1903 to install on the Win 7 Pro OA (OEM) based computer.

4) Used the OA Product Key that was listed on the Computers Case.

5) Installation completed.
Program confirms activation is valid.

6) Win 10 Pro will not list an available upgrade to Win 10 pro version 1909.

 

Is it still possible to upgrade OEM Window 10 from HOME to PRO with a valid windows 8 OEM PRO key?

I purchased a windows 8 OEM Pro key several years ago. Recently I bought a laptop with Windows 10 HOME. I want to upgrade it Windows 10 Pro. It is possible to make it with the Windows 8 Pro key? If yes, what steps are there? Many thanks!

 

Windows 10 pro

I need to change my motherboard, have windows 10 pro. When i google how to it says go to activation then add an account, my issue is there is no add an account option under activation? Or am I in the wrong window?



Not sure how to proceed, ive googled it and the same results. Do I have an OEM or? On the disk sleave it says OEI DVD?
The COA says windows 10 pro for OEM software