Lag spikes / glitches affecting performance

I've been having a problem for the last week or so, basically I keep getting lag spikes / glitches that affect the performance of my machine. This manifests itself in the most obvious way as what can best be described as occasional "gzzzfchzz" sounds (much like a BSoD sound while playing video, but only for a fraction of a second). I first noticed it on YouTube and thought it may be a browser issue, but I've since experienced it playing literally any video or sound, and less obviously while doing anything whatsoever on my machine (although since they're only for a fraction of a second they're less obvious when doing anything without sound).

Someone else seems to have had the same problem as me:
Occasional micro-stuttering / lag-spikes - Windows 10 Forums
Although they don't say exactly how they fixed it...

I've had Windows 10 installed since the public release day, I have all drivers updated to the latest versions, and I'm running on an Intel i7-4770K (not overclocked) with 32GB of DDR3 RAM and a Samsung 840 EVO SSD so it's a system that really shouldn't be encountering any lag, especially just playing Netflix or an MP3.

Any help would be appreciated since it's driving me mad.

Here's a little clip of what happens, the glitch is half way through at 5 seconds:

I have the same glitch since i started being a insider, upgrading from build to build didn't fix it. I tried reinstalling audio, video, sata, chipset drivers, upgraded bios to the latest version but nothing worked so i gave up.
This bug only happens 3-4 times/day so it isn't a big deal for me.

This wasn't happening at all until 1-2 weeks ago, and even rolling back drivers didn't help. Sometimes it doesn't happen for 30 minutes, sometimes it happens 10-20 times in 1 minute. Super annoying, I could definitely deal with it if it was only 3-4 times per day.

Anyone have any ideas? :)

Bump bump bump. Someone must have an idea of where to start?

I have the latest graphics drivers, the latest sound drivers, the latest everything drivers, I'm up-to-date on Windows Update, I've done the whole resource monitor checking to see if there are any spikes (which there aren't), I've got the latest HD drivers, latest bios updates...

I basically have the same shit. I call it shit because it feels like being in a heap of that stuff .

Which I obviously have done many many times in my life, e.g. by using linux .

With me it is more severe perhaps but I get incredible lag from some applications and this should never happen - that an application cause the entire system to start to stutter.

Even when it is dosbox....?

Currently also running a virtual machine guest and this too can cause these issues. The weird thing is that CPU is never above like 40-60%, there is plenty of RAM, and there doesn't seem to be big harddrive activity.

I have drivers that are just stock from Windows 7 but that still work. It is an older laptop (2010). Nevertheless, I do not remember these issues from Windows 7?

For me it's really more like the whole system grinds to a halt after a while. I was doing a file copy and it started at 13MB/s (the harddrive itself is only 30-35MB/s, so that is not too weird) but it grew less and less and eventually was doing only 1MB/s with apparently nothing else in the system going on. It is terrifically weird and outstandingly stupid. I hate it.

Dryden,

How long do these slow grinds last for?

Usually it is unfixable, I don't know. Perhaps one time I sat it out and eventually it recovered, could be. I have it most with a dosbox game but a virtual box virtual machine eventually also causes it. And when such a file copy is going on, the scheduling seems to be such that, or in any case, other program stop responding entirely in the sense of having to wait a long time for harddisk access.

For example, opening a webpage may take a minute or so because (probably) it has to read cache files and all.

I have never experienced this anywhere, neither with this laptop, and in Linux (native) it performs really well for what that goes. When I had this laptop (second hand) with a standard Windows 7 pro install they give you, after a few weeks it also started doing weird stuff. But those were BSODs not performance slowdowns. After that I reinstalled Win 7 and had no issues apart from Windows Update not working (which seems to be a very common problem). For that reason alone mostly I went with Windows 10 at that time.

Win 10 seems to have worked well for a while but around the time I started the Dosbox games it really started to slow down or something. Dosbox performance is terrible. When I was in my VM, hdparm gave 15MB/s. After reboot, it gave 35MB/s.

I have not really seen the system recover except for keeping the dosbox game paused and eventually it ran faster again.