Repairing Office 365 caused it to uninstall!
The other day I was having problems with my Outlook, as part of my Office 365 subscription. So I carried out a quick repair via the Windows Control Panel. The quick repair didn't work so then carried out a full repair.
I then carried out a full repair and it completely uninstalled my Office 365. Everything went including Outlook, Excel, Word and all the other Office 365 applications.
I tried reinstalling but this didn't seem to solve the problem at all. I then used the following Easy Fix Tool from Microsoft to do a complete uninstall.
Go to the following Microsoft Support page and under Option 2 select Download.
Once this had finished I then reinstalled Office 365 and everything started worked fine again!