Hello PAULA FERREIRA5, Thanks for using Microsoft products and posting in the community.
Can you please tell me if you open Word, click on File in the upper left corner, and then click on Account in the lower left corner, and the error message on the right side is the same?
If so,what you are facing is a popular problem that came up recently, I am very confident in solving it, I have helped many users with this problem in August and it is not that difficult to do, so please give it a try:
- Alternative version
- Close all Office software, search for "Command Prompt" (or "cmd") in the "Start menu", right-click and select "Run as administrator";
- At the command prompt, enter the following code:
Enter;cd %programfiles% \Common Files\microsoft shared\ClickToRun - And then he walks in
Officec2rclient.exe /update user updatetoversion=16.0.17531.20120 - Once you exit the version, go to the File menu > Word account. On the right side, check the "Microsoft 365 and Office updates" heading, click the "Update options" button, and select the "Disable updates" option. Here's how to turn off the auto-update feature.
The above action will revert your Microsoft 365 to a slightly earlier version 2404 and temporarily disable updates. Rest assured that minor versions don't affect Microsoft 365 functionality. Stay tuned for Microsoft's official announcement on this matter.
Here are some topics where I have helped other users with this problem, they are in different languages, so you may need to use a translator, take a look:
- Ich kann mich nicht in den Office365 Apps anmelden obwohl es online - Microsoft Community
- license issue - Microsoft Community
- Office error code:29 - Microsoft Community
Also, please let me know the results, your feedback is important for me to summarize this problem later. Have a nice day!Arthur - MSFT | Microsoft Community Support Specialist