Table 'performance_schema.threads' doesn't exist. SQL Error: 1146) I'm using MySQL '5.6.29-log' on Windows 2012 and performance_schema is missing 
few tables.

How does I re create performance_schema? I'm looking at MySQL :: MySQL 5.6 Reference Manual :: 22.2.1 Performance Schema Build Configuration and  I cannot find anything(

Please advise.
mysql_upgrade — Check and Upgrade MySQL Tables