Scenario: You need to rebuild the Content Index of Exchange 2013 Database.
**Note: There is no ResetSearchIndex.ps1 script in Exchange 2013. Rebuild needs to be performed manually**
Instructions:
1. Stop the following 2 services”
– Microsoft Exchange Search Service (Service Name: MSExchangeFastSearch)
– Microsoft Exchange Search Host Controller (Service Name: HostControllerService)
2. Delete or Move the existing Content Indexing catalog folder (CI Folder) of the Database you wish to rebuilding Content Indexing for. The CI folder is located in the Database directory and has a folder name of a GUID. (C:DB01Database27485485-A8dF-4Ed8f-BED8-8C4753D6BA123.11.Single)
3. Start the 2 services you stopped in step 1:
– Microsoft Exchange Search Service (Service Name: MSExchangeFastSearch)
– Microsoft Exchange Search Host Controller (Service Name: HostControllerService)
Ex-Shell 