> If I install Office 2019 on his machine and set up the O365 account in Outlook, Office automatically upgrades to Office 365.
- Which version of Office 2019 do you install? And how do you activate the Office 2019?
Such as Office Professional Plus 2019 using KMS activation method, Office Standard 2019 using MAK activation method. - Do you mean the user go to Outlook > Click File > Info > Add Account, add the email account?
- Or do you mean the user go to File > Office Account > User Information > Switch Account, log the account into Office?
I suggest you go to on Office app > File > Account > Product Information, and go to Control Program > Uninstall a Program to check the version of Office.
Besides, I suggest you run the following command check the license version of Office, please share the result of this command with me for further analysis.
- Search CMD, right-click the Command Prompt and run as administrator. Then copy and paste the command, click Enter at last.
cscript.exe "%ProgramFiles%\Microsoft Office\Office16\ospp.vbs" /dstatus
- (If you are running 32-bit Office on a 64-bit operating system)
cscript.exe "%ProgramFiles(x86)%\Microsoft Office\Office16\ospp.vbs" /dstatus
Looking forward to your reply.
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