Hi Kate,
Thank you for choosing Microsoft Communities. I will assist you with your query related to Microsoft Office applications.
This issue may occur if there are any add-ins or third party security software associated.
Before we start with the troubleshooting steps I need more details:
1)
Do you get the error message before sign-in or after sign-in?
2)
What is the exact error message you get?
3)
Have you installed multiple versions of Office Suites?
In order to trouble shoot the issue related to Word, You may try the step below:
Open Word in safe mode and check if the issue persists:
Hold
Windows key + R.
Copy and paste, or type the following command in the Open box, and then press Enter:
WinWord /safe
Note: There is space between WinWord and /
If the issue still persists, Repair Office installation as mentioned in the link below and then try to open Office applications and check:
http://support.microsoft.com/kb/2827031
I hope the information helps. If you need further assistance on this particular issue or any other Office related issues let us know and we will be
glad to assist you.
Thank you.