Fix Cannot get performance counter data

I was receiving management error on my windows 2012 R2 server

 

this is what helped:

1. to rebuild perf registry using elevated CMD enter: lodctr /R
2. re register perf libraries: winmgmt /resyncperf

that is what worked for me.

 

reference: http://www.expta.com/2015/08/fix-for-server-manager-error-online.html

windows 2012 R2 domain AD health check

 list of simple commands to check the health of AD

1. DCs replication status (CMD):
   repadmin /showrepl
2. domain replication status (CMD):
   dcdiag /v
3. MS AD replication status tool:
   https://www.microsoft.com/en-us/download/details.aspx?id=30005