Hi all,
I have had this horribly caught amidst the problems I was facing with Windows 8.1 and then I installed Office 2016 and was cruising towards setting up Outlook and some other very essentials for me like Visio and Project. As I needed my iPhone to be simultaneously working on synchronisation as the newer version of Office I was moving quickly iCloud sync app (the recent latest version) has also been installed and immediately after then I realised the grave mistake I did. Any of the Office app would not load and seems some repair would try to solve and crash soon. My emails on Outlook have entirely messed up my situation and I lost good amount of time, money, clients relations and peace of mind. I worked out the best and researched as most of the systems around are predominantly Windows based. Unfortunately I have to do this research and felt this will help you all too.
Office 2016 is backward compatible. Make sure to skip the entire iCloud family of 6.X.X.X version updates while tracking the older versions and see for a stable version.
Yes, Microsoft acknowledge Apple released this version but I don't feel its worth wasting time as neither would compensate any ones loss.
iCloud for Windows 5.1 supports Outlook 2016 -
So, try downloading version before 6.0 as I could find some on filehorse:
http://www.filehorse.com/download-icloud-control-panel/old-versions/
I used the iCloud version 5.2.1.69 and it worked. Office 2016 has been loading with older versions of iCloud (5.2.1.69) and I currently have no issues. I will not be able to rule out that this is sure but I have no options but to use Windows operating systems and so as Office along with the iPhone. So, please do not take my word but backup for your safety. and try this.
Good luck.
Regards