I have an experience with Winword crashing on start-up, even in safe mode (not Windows safe mode, just winword /s), Excel crashes in normal mode but not in safe mode and PowerPoint just works fine.
I did try 365 but gave it up and bought disks instead hoping that might help, it didn't. I am an adjunct professor trying to set homework and upload it to a university coursesite, right now that is hard but using google docs (and output to MSWord format) I manage but miss out on special characters and symbols.
With 365 I tried many times to repair, reinstall and so forth without success, I have a Windows7 OS.
Thanks for any help.