Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Louise,
The error code that you're getting is very rare, or not a known issue when downloading or installing Office software. However, It's good that you're able to free up the space on your computer. There are two things that we can do to troubleshoot your concern. First, turn off any antivirus that is installed on your computer, as well as the firewall of each antivirus. Second, you can run the Systems File Checker tool in an elevated command prompt, to check for any missing system files or corrupted data.
We're looking forward to your feedback