This is a collection of the top Microsoft Support solutions for the most common issues experienced when using Microsoft SQL Server 2012 (updated quarterly). Note that some content that applies to earlier versions of SQL Server is listed, because it can be also helpful with SQL Server 2012 issues.

1. Solutions related to performance – server:

2. Solutions related to Cluster failover:

3. Solutions related to AlwaysOn Availability Group resource unexpected failures:

4. Solutions related to Stand-alone – setup or upgrade:

5. Solutions related to Crashes and exceptions