Your system is definitely ill from looking at event logs. Now we have to figure out why its sick. Run crystaldiskinfo on the system and make sure your hard drive is healthy. There are 2 Disk issues noted and HP Health keeps popping up and loadperf has quite a few errors. If the hard drive shows as healthy, do you have the installation media to reinstall clean. If its not a hardware issue then it looks to be a corrupt build. There is one fix that might work for the loadperf issue, but it could be caused by ill hardware.
More info on loadperf fix attempt:
http://www.cybertechhelp.com/forums/showthread.php?t=214748It looks like the performance counters are corrupted however they can be rebuilt.
Open an elevated command prompt. To do this, click on the Start button and type cmd.exe in the Start Search box. Cmd.exe will appear at the top of the Menu. Rightclick on it and choose "Run as Administrator". Copy and paste the below commands after the prompt> (one line at a time) and hit Enter after each line.
Code:
cd %windir%\system32
Lodctr /R
When the rebuild is complete, you see the below message.
Info: Successfully rebuilt performance counter setting from system backup store
Type exit.
Whats really odd is that you stated that this system is
custom built... yet you have
HP Active Health in the error log. Searching google I found another hit with someone asking how HP Active Health is on their system here.
http://www.techsupportforum.com/forums/f217/the-hp-support-stuff-is-driving-me-insane-1046521.html it might have come from a HP software installation from a printer or something.
In the last pic with errors listed there are 147 errors, there is much more to be seen if you scroll down, where are the other error locations? Missing about 75 errors in this pic which might point to a trouble spot that goes together with other issues seen here.