Yes it’s 2020 and we’re still messing around with Office 2010! If you’re having issues with license keys not working, activation problems etc then here’s a few useful commands.
Open CMD as Administrator.
cd c:\Program Files (x86)\Microsoft Office\Office14
cscript ospp.vbs /act
Change Product Key
cscript ospp.vbs /inpkey:XXXXX-YYYYY....