Top 10 most important performance counters for Windows and their recommended values

PhysicalDisk/%idle time – should not be less than ~%60 PhysicalDisk/Avg. Disk sec/Read should not be higher than ~20ms PhysicalDisk/Avg. Disk sec/Write should not be higher than ~20ms PhysicalDisk/Current disk queue length. should not be higher than 2 Memory\Available Mbytes, minimum 10% of memory should be free and available \Memory\Pages/sec should not be higher than 1000 Network Interface(*)\Bytes Total/sec…

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What if you suspect WMI is corrupted and running winmgmt salvagerepository or resetrepository is not sufficient on Windows 2012 and Windows 8

Run the following script in cmd.exe spawn using Run As Administrator privileges: @echo offsc config winmgmt start= disablednet stop winmgmt /y%systemdrive%cd %windir%\system32\wbemfor /f %%s in ('dir /b *.dll') do regsvr32 /s %%swmiprvse /regserver winmgmt /regserver sc config winmgmt start= Autonet start winmgmtfor /f %%s in ('dir /s /b *.mof *.mfl') do mofcomp %%s   NOTE:…

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Increase WMI Quota properties to maximum values

WMI related performance issues may arise due to extensive usage of WMI components. You can increase the value of following properties to its maximum. Restart may be required after applying the following settings. Run cmd.exe as admin Type wbemtest.exe and run Click Connect. In the namespace text box type "root" (without quotes). Click Connect. Click Enum Instances… In the Class…

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TokenAndPermUserStore related information on SQL server 2012

We like to limit the size of the TokenAndPermUserStore.  There are significant changes in SQL server 2008/SQL Server 2012 with respect to the TokenandPermUserStore. One of the main change is to have Separate SQL OS UserStore's for each AccessCheckResults cache (In SQL server 2008) instead of one single large cache(as in SQL Server 2005). All…

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