Hi,
As I understand you are unable to open Office applications saved on the computer as it prompts you to activate Office. Let me
assist you with the issue.
The Product key on the bottom of the laptop might be for Windows operating system hence you receive an invalid produce key error.
Also Microsoft Office program might have entered Reduced Functionality Mode (RFM) hence it opens with blank window. Follow the steps mentioned and check if it helps.
Check if you have any trial version of Office installed on the computer which has expired. If yes, then uninstall the trial Office
program and check:
·
Close all the Office application.
·
Click on
Start< Control Panel< Add or Remove programs.
·
In the programs list check if you have any Microsoft Office trial program installed.
·
If yes, highlight the trial program and click on
Uninstall.
·
Once the uninstallation is complete reboot the system.
I hope the above suggestion helps. Let us know if you need any further assistance.
Thank you.