I've been using a laptop that I custom ordered from HP for the last month. 2 weeks ago, I was watching a video with my wife and I heard the dreaded audio stutter. You know the sound, similar to how it sounded in the Matrix when was jacked out. Or maybe not, I haven't seen those movies in quite a few years. Anywho, I thought maybe it was a fluke. I was watching an avi movie with VLC at the time. Since then, I've been unable to watch any sort of video without encountering this issue. Even when it's just a website playing an mp3 using flash, it still happens. I used Latencymon, which detects problems but gives no answers. I've tried dpclat, and that also shows problems with no answers. I installed the Windows ADK. Then I ran the Windows Performance Recorder for 5 minutes while watching a video online. After saving the results and opening them with the Windows Performance Analyzer, I saw what appears to be a hint of an answer. In the dpc graph, it shows the dpc of every running thread/process/service/whatever. There were 3 that jumped out. First was iaStorA.sys, which had 5 huge spikes at regular intervals. Second was dxgkrnl.sys, which was hovering at a steady 500-600. Third was Smb_driver.sys, which had 2 big spikes, although they weren't nearly as high as iaStor's nor as frequent.
At this point, I have no idea what to do. I don't actually know if these are the culprits or just innocent bystanders being framed by some other process that is holding them up. If they are the problem, I don't know how to fix them... I don't even know what they are. As things stand now, watching video or listening to audio is insufferable. I'll be more than happy to provide any extra information needed.
In case it matters, I'm using a HP ENVY 15t-j000 quad edition laptop.