Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi,
Thank you for posting your query in Microsoft Office Community.
The specified error could occur due to multiple reasons as mentioned below.
Corrupt Office installation, Firewall, Anti-virus program, internet connectivity or the download server.
Let’s follow instructions mentioned in the following article and see if it helps.
Hope it helps. Reply with the result and I'll be happy to help you further.
Thank you.