High Deferred Procedure Calls (DPC) on External Drives FIX


#1

I was having really slow PC response times after I installed a WD10EAVS 1 TB USB 2.0 drive.  Running Sysinternals Process Explorer revealed high DPC and high System  CPU utilization.  It would even take a few moments for keypresses to appear on the screen, that is how bad it got.  96% CPU utilization on average, but as soon as I disconnected the drive it immediately went away…down to 0%-2%.

I went into the Control Panel–>Power Options.  I set the Power Scheme to ALWAYS ON, Turn off hard disks: Never, System Standby: Never.

IMMEDIATELY fixed the issue I was having.  Hope this helps someone.