Hi,
Please confirm:
- This issue occurs in only one file or all Excel files?
- Were some add-ins or other software products installed?
Here are some suggestion:
If the issue happened in only one file, please check whether there are some special settings in this file. Try to copy the content into a new workbook to check
whether the issue is still happen.
If the issue occurred in all Excel files, we can open the files in safe mode to check the issue.
More information about safe mode, please refer to the link:
http://office.microsoft.com/en-us/excel-help/work-with-office-safe-modes-HP010140792.aspx?CTT=1
Jaynet Zhang
TechNet Community Support
