If you find the SQL Server related performance counter objects are missing, you can try below steps to get it back
For example, my instance name is STD2016, and now open the command window with Administrator
1. Unload the counters.
a. Open Command Prompt
b. Change directory (cd) to the \Binn folder of your instance, by default, the folder path should be
C:\Program Files\Microsoft SQL Server\MSSQLXX.INSTANCENAME\MSSQL\Binn
c. And then run unlodctr command, if you are using the default instance, just use:
unlodctr MSSQLSERVER
For me, it is unlodctr MSSQL$STD2016, the format is MSSQL$INSTANCENAME
2. Load the perfmon counters.
a. Under the \Binn folder you will see a file that begins with "perf-MSSQL$", the name format is perf-MSSQL$INSTANCENAMEsqlctr.ini.
b. Run the following command to load the counters for a default SQL instance:
lodctr perf-MSSQLSERVERsqlctr.ini
In my case I was using a named instance:
lodctr perf-MSSQL$STD2016sqlctr.ini
3. Restart the remote registry key service
NET STOP "Remote Registry" & NET START "Remote Registry"
4. Close Performance Monitor and open it again, you will be able to see the counters:
