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Fred Leggett

Scanner unfreezing my system.

Question

This doesn't really have anything to do with Scanner, but it IS related, so please keep reading.

Every once in awhile, my Windows 10 system will partially freeze.  By partially, I mean I can still access the start menu and run certain programs, but the rest of the system is unresponsive.  Bizarrely, this seems to happen only when I'm watching YouTube videos.  I think it might've also happened once when I was running a video through MPC-HC.  I also witness the occasional BSOD caused by a core video driver, which might be related and is distressing, but can't be heat-related (see below).

For a few weeks now, Scanner has been reporting that my NVMe (a Samsung 950 Pro) is running seriously hot.  I finally had enough of that and bought an active SSD cooler.  Once installed, temps dropped considerably.  Scanner still reports a warning, but only a degree above spec instead of the almost 10 degrees at which it was running before.

Unfortunately, that hasn't stopped the partial freeze issue.  I've checked my CPU temps and they're all nominal.  In fact, they're all exceedingly low, as I only use this box for HTPC duties and use a Corsair AIO.

This is where Scanner starts to really enter the picture.  When the partial freeze occurs, I can invoke Scanner and it will unfreeze the freeze.  I originally thought Scanner might be the problem, but the freezes persisted even after uninstall.  So, as it turns out, Scanner is actually the one program I can rely on to restore my system to a usable state.

My question is this - what is Scanner doing to unstick my system?  Is it sending some sort of wake or initialization command to my drives when invoked?  If I can understand this better, I might have a shot at determining the real culprit.  While I'm not running the most complex of setups, I would rather avoid having to reinstall Windows and everything else if I can help it.  Plus, there's no guarantee that will fix the problem.

Thanks in advance.

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Well, it's querying drives, pretty regularly. But it does that automatically, so you wouldn't need to open the UI for this.

However, the UI does connect to the "performance counters" on the system, and that queries a bunch of parts on the system.

My guess though, would be a GPU related issue, though.  A bad driver, or maybe a damaged GPU. 

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I'm beginning to suspect the CPU.  I'm using the onboard graphics of my i5-4960K, which contains Intel HD graphics 4600.

I don't really know why the CPU would be the culprit, though, as it seems to work fine in all other respects.  And, as I wrote earlier, the temps are all fine, so it can't be an overheating issue.  Drivers are all up-to-date.  Windows is fully updated.  The BIOS is the latest.

Very strange.  I guess I'm gonna have to do additional troubleshooting.

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