Aranarth wrote:Create a new outlook profile first.
It is much faster than rebuilding the entire index for your computer.
Creating a new outlook profile will just rebuild the index for your email. You can always rebuild the entire index if need be.
Chrispy_ wrote:Outlook 2016 is way better at handling large OST/PST files and is less likely to break the index in the first place. I'm not sure of the specifics but using it with locally-hosted public folders in Exchange 2010 and hybrid Exchange accounts under O365, Outlook 2016 has been far more stable with better data file integrity and cache management.