Windows 10: Win 10 Pro reinstallaton

i lost Win 10 Pro through a HD format by a repairman. He replaced it with Win 10 Home. How can I reinstall Win 10 Pro purchased from MS; have neither key or other activation means but only an order nr in my MS acct purchase activity.

Thank you

JJV

:)

 

Excel will not use Thunderbird to email spreadsheet on Windows 10 Pro

I was trying to keep it simple, she's not the sharpest knife in the drawer but kind natured.
If i could emulate what I can do thenwhen she gets twined up I can talk her step by step.

if we can't sort why Win 10 Excel won't see T-B as the main email client then we'll just have to go with your suggestion.

I should have said Win 10 pro 64 bit?

 

Wins 10 pro becoming wins 7 pro

I am using wins 10 pro, but during end user activation it shows wins 7 pro

Any suggestion?

**Post moved by the moderator to the appropriate forum category.**

 

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.