Windows tightly hangs for a few seconds?

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In fact, sometimes when you open "My computer" list of drives or when you insert a pendrive/DVD computer simply tightly freezes (mouse not moving, keyboard not responding to NumLock), i.e. a complete lack of reaction to external stimuli. After 10-30 seconds the computer itself dies, as if nothing had happened. Question actually in how to determine the cause of the system hang and how to deal with it.


OS: Windows 7 x64


It is worth to say that the system is on RAID and all the screws included in it. Before the picture was: RAID 1 (2х250 gig) on the system drive and RAID 0 (2х640 gig) for extra storage. Now everything is migrated to a single RAID 5 (4х640 gig). In both configurations, the symptoms were the same. There is a suspicion on the biggest looser among one of the drives (previously included in RAID 0, then RAID 5), as previously hang happens more often when referring to additional storage. But not SMART, nor are any other quick tests did not show problems with any of the disks. RAID on iron intelabeam chipset built into the mother (ICH10R), the version of fire wood behavior does not change.
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Firmly and at the same time on a multiprocessor machine. If it is connected and with the drive, it is likely that some driver blocks all kernel ISR or DPC. But it may be something associated with spinosae (more likely, for something like I had with proactive protection Outpost a couple of years ago ... once figured out).
\r
In fact, to look for a reptile is to install the WPT Kit
Since the problem occurs infrequently, you will have to constantly turn circular logging. Run from elevated console:
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\rxperf -on latency-stackwalk profile-maxfile 128-filemode circular
\r
Of course, some resources will fatten up on a permanent log record, but on personal observations, it does not really interfere with even relatively weak low-middle end laptop more than two years ago.
After the problem careproducts, you need to run from elevational console:
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\rxperf -d trace.etl
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Then we do
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\rxperf trace.etl
\r
to open the log and you can proceed to the analysis. The first step is to find the problem area and make a zoom on him. Then register in characters
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SRV*c:\\downstore*http://msdl.microsoft.com/download/symbols
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and output the "Summary table" in the "Stack counts by type". Very likely you can find oddities already there.
Also take a look at the "Summary table" for "DPC CPU Usage" and "Interrupt CPU Usage". Generally speaking, semi-formal requirement of ISR duration is not more than 10 µs, the DPC is not more than 25 µs. The average duration ISR and DPC should be close to this peak value can be in the region of milliseconds or tens of milliseconds. If there are hundreds-thousands — it is a problem.
\r
In General, good hunting.
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Perhaps in preferences you have turned off the hard drives after a certain idle time?
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possible virus... or is it the antivirus or firewall.It happened to me when I made a mistake in configuring the antivirus... went over well when the file Internet downloaded — the system froze.
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I had this with buggy AHCI driver for win 7. try change to standard AHCI in device Manager.
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May not be associated with any attempt to open flopec (download driver) in his absence? For example, it is enabled in the BIOS, And disk, and the floppy drive is not physically. The computer may hang when you try to access it.
If not — try opening task Manager and try to consider any of the two processes starts to eat 100% of resources at the moment? Well and dig from there.
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hmm. on my HP dv7 (Win 7 x64 escalope) such nonsense is observed, then passed. RAID no, screw one.
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but now periodically delays when you open QuickLaunch (comp reacts in the periphery, percent is not loaded, but the icons of shortcuts in QuickLaunche not rendered seconds to 10 and Explorer on what does not react) + off periodically external USB keyboard, also for 10 seconds.
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I have a i5 in a similar situation. Only moves the mouse and everything freezes for 4-5 seconds. Sometimes this coincides with the stop screw (though you get the option to stop), but very often directly during active work. Under openSUSE, everything is fine.
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