HTCondor on Windows platforms relies on built-in performance counters
for its operation.
If performance counters that HTCondor requires are disabled,
daemons may exit with a message such as

{code}
1/26 09:16:42 (fd:2) (pid:5732) ERROR: "Unexpected performance counter
    size for total CPU: 0 (expected: 8)" at line 2846 in file
    ..\src\condor_procapi\procapi.cpp
{endcode}

or

{code}
1/20 15:29:14 (pid:2484) ERROR "unable to spawn the ProcD" at line 136
    in file ..\src\condor_c++_util\proc_family_proxy.C
{endcode}

and even

{code}
4/16 10:49:13 loadavg thread died, restarting. (exit code=2)
{endcode}

To enable the performance counters, check the registry key
{code}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfProc\Performance
{endcode}
If a value for Disable Performance Counters exists, delete it or set
it to 0.