Processi in Microsoft 365 per configurare app di Office, riscattare chiavi del prodotto e attivare le licenze.
Hi Beatrice,
I am sorry to hear that you are having trouble installing your office apps. The error explicitly mentions contacting an administrator. Your university likely manages software licenses centrally. So, I would suggest you first contact with your University IT department. Or, if you no longer need your school account, you can also consider remove the credentials by:
Open Control Panel > Credential Manager > Remove any saved credentials for the software. (notice that this is for Windows PC)
I hope this can help!
Best regards,
Katherine V - MSFT | Microsoft Community Support Specialist