When you start any MS Office 2013 software, you receive a message telling you that you need to start in safe mode. “Word couldn’t start last time. safe mode could help you troubleshoot the problem”.
Disable hardware acceleration (This fixed MY problem!)
1. Run regedit (Win + R ; “regedit“)
2. Browse to HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common
3. Create a New Key and name it “Graphics”
4. Select Graphics, right-click on the right panel and create a New DWORD (32-bit) Value and name it DisableHardwareAcceleration.
5. Enter Value data as 1
Try to run Excel normally now.