Under Process Explorer, I noticed that System -- and occasionally Interrupts -- are taking between 5% and 20% CPU constantly, for hours on end. This is resulting in weird video playback problems. (Audio files have 'gaps' and YouTube videos have pauses in them.)
This problem has been happening for a while. Sometimes, a restart fixes it, IIRC. I also recently upgraded to a 1920x1080 monitor... But this shouldn't have any affect on audio. I also just disabled ReadyBoost (which I also got recently).
I killed PeerBlock and uTorrent, and this still continues to happen; previously, killing them was enough to get my CPU back down to ~0%.
My CPU temperature is ~55 C and my HDD is at <40 C.
So it is uTorrent's fault (or PeerBlock or Comodo).
Answer
Look carefully at this picture, what the worst thing that you can spot?
That should be ndis, which stands for network driver interface specification.
Wait, what... Network, that's right:
So it is uTorrent's fault (or PeerBlock or Comodo).
So, hmm, the problem is indeed provoked by network activity. And it does something with the driver interface, that's right because firewalls add class filters to driver interfaces.
So, the correct way to proceed is to get rid of those filters, which has proven to work for me:
- Get rid of your Comodo firewall, PeerBlock and other network related filters.
- Get rid of your network card (from device manager) and remove its drivers.
- Shut down your computer.
- Remove the network card.
- Boot your computer.
- Ensure the network card is gone from the Device Manager, under the options at the top you can select to show hidden devices; remove any hidden network card devices you come across.
- Shut down your computer.
- Insert the network card again.
- Get the newest drivers for your network card, install them.
- Reboot again to make sure they are cleanly loaded.
- Test your software again, then consider an alternate firewall.
Been through worse issues, done the above steps to get rid of Comodo.
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