So I was troubleshooting this problem where a computer was occasionally becoming unresponsive to the point that the only option was a power-cycle to bring it back to life. I tried the following:
- Checked for Malware & removed some adware using MBAM
- Applied all updates
- Check Disk status with HDTUNE (no smart errors, but very slow disk performance (<10mbits/sec with jumps to 200mbits/sec)
- Did cleanup with CCLEANER
- Did full scan with Webroot (nothing found)
- Reviewed the log files and found multiple messages about process or application timing out with some messages even indicating that the problem was likely a hardware based issue.
- The memory, CPU, and HD were spiking to 100% regularly and I couldn't find any application using more than 150MB.
I migrated the machine to a Toshiba SSD and ended up with a "not as bad" version of the same issue where everything was very sluggish, but at least basic tasks were possible with some patience.
I downloaded Process explorer and quickly discovered that every application looked okay except for some Wild Tangent process. It was using 64K working set bytes, but 2GB of Private Bytes. I uninstalled the Wild Tangent system and everything seems to be working great.
Even with the reported usage of 2GB of Private Bytes, the numbers still don't add up. The machine is running Windows 8 with 8GB RAM. Without WildTangent installed, 5.4GB of Available memory is reported in Task Manager instead of 0 and the system is running like a champ.
Can anyone give me some insight on what the heck was going on? Even with the 2GB of private Bytes being used, I should have still had 3GB of available memory or really should have had 5.4GB of available memory because Private Bytes are active memory usage, right???
Signed, Jeff the confused