Windows 8.1 computer shuts down unexpectedly.

After being nagged incessantly by Windows 8 to upgrade to Windows 8.1, I reluctantly fell prey. Now I am extremely remorseful because I should have known better.

As you may have guessed, I have precisely the same issue described by my woeful compatriots here. I tried everything listed, but the system has no detectable root cause to correct.  It just shuts down whenever it pleases and logs the event as unexpected quite nicely.  

I was about as happy as a Linux user could be with Windows 8.  At the very least the system was usable. I even learned to accept the way control of my pc is seized during updates as I am held captive by the warning Do Not Unplug Your PC.  The only reason I am not using Ubuntu is because of the fettered installation caused by the sinister introduction of UEFI.  But I suspect I am being compelled to invest whatever time it will take to get Ubuntu dual booting on this machine.

I can tolerate bugs that are annoyances until an update comes along and fixes it.  I can tolerate things not working quite the way they should and can adapt fairly well.  After all, I've been trained by Microsoft products for two decades now.  What I cannot tolerate is the time and creative effort that wafts into the luminiferous aether when this God forsaken operating system just cuts power in the middle of my trying to make a living.  Believe it or not, most of us are not billionaires like many of the chief peddlers of Windows 8.1; so this sort of thing is too costly for an economic mortal.  

A speedy solution to this problem is requested.

Anannya,

With the computer and page size set range of 1982-2000MB it still sudddenly shuts down with no warning. So obviously that is not the problem.

The problem is Windows 8.1 is sending some system interrupt that just shuts offf the computer. This did not occur with XP and all the harware is the same. Also, people that have purchased brand new laptops with Windows 8.1 are having the same issues.

It is a BUG!!

So I hope someone at Microsoft is working on a resolution.

UPDATE 2... 1. Two days with no problems since pagefile (Virtual Memory) set to 7GB. I'm pretty much convinced that Windows 8.1 has a MEMORY LEAK. In other words, it's bugged. Unbelievably amateur. Loads of people online with same problems. 2. Task Scheduler/Automatic Maintenance is a right pain. Even if you disable it it comes back. This is because the "Maintenance Configurator" resets it, and you don't have permission to change it ON YOUR OWN COMPUTER!! Outrageous. If MS don't change this then I'm going Linux. This and Skydrive (which you're pretty much FORCED to use, is a bloody outrage. 3. Do MS listen to feedback? I've been telling everyone Win 8.1 is your best OS yet. Well not any more. You are creating more bad feeling towards MS. The memory/shutdown issue is amateur, the Scheduler and Skydrive are ourageous, and the Maintenance stuff is a memory-hogging pig. Then "superfetch" grinds your disc constantly, too. What an absolute joke. Please fix these issues. It's not the users' PC's... It's MS rubbish. The answer? Set your page file to massive. And let MS own your PC.

widows 8.1 shutdown unexpectedly

following is the whole event log of this session

Information    12/23/2013 10:32:34 PM    Customer Experience Improvement Program    1007    None

Information    12/23/2013 10:30:26 PM    LocationProvider    2003    (1)

Information    12/23/2013 10:30:25 PM    LocationProvider    2001    (1)

Information    12/23/2013 10:30:25 PM    Location Activity    1    None

Information    12/23/2013 10:28:28 PM    SecurityCenter    16    None

Information    12/23/2013 10:28:28 PM    SecurityCenter    16    None

Information    12/23/2013 10:26:11 PM    Security-SPP    903    None

Information    12/23/2013 10:26:11 PM    Security-SPP    16384    None

Information    12/23/2013 10:25:37 PM    Security-SPP    1003    None

Information    12/23/2013 10:25:37 PM    Security-SPP    1033    None

Information    12/23/2013 10:25:37 PM    Security-SPP    1040    None

Information    12/23/2013 10:25:37 PM    Security-SPP    902    None

Information    12/23/2013 10:25:37 PM    Security-SPP    1003    None

Information    12/23/2013 10:25:37 PM    Security-SPP    1066    None

Information    12/23/2013 10:25:36 PM    Security-SPP    900    None

Information    12/23/2013 10:24:43 PM    ESENT    103    General

Information    12/23/2013 10:24:43 PM    ESENT    327    General

Information    12/23/2013 10:21:20 PM    SecurityCenter    16    None

Information    12/23/2013 10:21:20 PM    SecurityCenter    16    None

Information    12/23/2013 10:19:41 PM    ESENT    326    General

Information    12/23/2013 10:19:41 PM    ESENT    105    General

Information    12/23/2013 10:19:41 PM    ESENT    302    Logging/Recovery

Information    12/23/2013 10:19:41 PM    ESENT    301    Logging/Recovery

Information    12/23/2013 10:19:41 PM    ESENT    300    Logging/Recovery

Information    12/23/2013 10:19:40 PM    ESENT    102    General

Information    12/23/2013 10:19:12 PM    Customer Experience Improvement Program    1005    None

Information    12/23/2013 10:18:54 PM    Security-SPP    903    None

Information    12/23/2013 10:18:54 PM    Security-SPP    16384    None

Information    12/23/2013 10:18:35 PM    SecurityCenter    16    None

Information    12/23/2013 10:18:23 PM    Security-SPP    902    None

Information    12/23/2013 10:18:23 PM    Security-SPP    1003    None

Information    12/23/2013 10:18:21 PM    Security-SPP    1066    None

Information    12/23/2013 10:18:20 PM    UNS    2000    UNS

Information    12/23/2013 10:18:20 PM    SecurityCenter    1    None

Information    12/23/2013 10:18:20 PM    Security-SPP    900    None

Information    12/23/2013 10:18:13 PM    LMS    0    None

Information    12/23/2013 10:18:13 PM    Intel(R) ME Service    0    None

Information    12/23/2013 10:18:13 PM    Intel(R) ME Service    0    None

Information    12/23/2013 10:17:16 PM    WMI    5617    None

Information    12/23/2013 10:16:55 PM    iPod Service    0    None

Information    12/23/2013 10:16:27 PM    Search    1003    Search service

Information    12/23/2013 10:16:26 PM    ESENT    326    General

Information    12/23/2013 10:16:26 PM    ESENT    105    General

Information    12/23/2013 10:16:26 PM    ESENT    302    Logging/Recovery

Information    12/23/2013 10:16:25 PM    ESENT    301    Logging/Recovery

Information    12/23/2013 10:16:25 PM    ESENT    300    Logging/Recovery

Information    12/23/2013 10:16:25 PM    ESENT    102    General

Information    12/23/2013 10:16:19 PM    Windows Error Reporting    1001    None

Information    12/23/2013 10:16:17 PM    Windows Error Reporting    1001    None

Information    12/23/2013 10:16:17 PM    Winlogon    6000    None

Information    12/23/2013 10:16:14 PM    Winlogon    6003    None

Information    12/23/2013 10:16:07 PM    Asus WebStorage Windows Service    0    None

Information    12/23/2013 10:16:05 PM    WMI    5611    None

Information    12/23/2013 10:15:55 PM    AVLogEvent    5000    (1)

Information    12/23/2013 10:15:39 PM    WMI    5615    None

Information    12/23/2013 10:15:37 PM    IntelDalJhi    0    None

Information    12/23/2013 10:15:37 PM    Intel(R) Capability Licensing Service Interface    0    None

Information    12/23/2013 10:15:37 PM    Bonjour Service    100    None

Information    12/23/2013 10:15:37 PM    Bonjour Service    100    None

Information    12/23/2013 10:15:37 PM    Bonjour Service    100    None

Information    12/23/2013 10:15:34 PM    AdobeARMservice    0    None

Information    12/23/2013 10:15:31 PM    Windows Error Reporting    1001    None

Information    12/23/2013 10:15:31 PM    Windows Error Reporting    1001    None

Information    12/23/2013 10:15:22 PM    User Profile Service    1531    None

Information    12/23/2013 10:15:22 PM    EventSystem    4625    None

Information    12/23/2013 10:11:16 PM    ESENT    326    General

Information    12/23/2013 10:11:16 PM    ESENT    105    General

Information    12/23/2013 10:11:16 PM    ESENT    102    General

Information    12/23/2013 10:10:09 PM    IconMan_R    0    None

Information    12/23/2013 10:10:09 PM    IconMan_R    0    None

Information    12/23/2013 10:10:09 PM    IconMan_R    0    None

Information    12/23/2013 10:10:09 PM    IconMan_R    0    None

Hi, Anannya,

I have the same problem with Win 8.1. It is set to Sleep PC Never and Power off hard drive Never, but it runs for 30 min or less then turns off.

In Administrative Events , I get "The previous system shutdown at 20:00:51 on ‎19/‎12/‎2013 was unexpected.", but, when I look in Windows logs as you suggested, there is no entry.

I've run through your methods 1 and 2 with no change.

Any ideas?

Edit: I forgot to say that the USB mouse has also taken to freezing after about 20 min while I'm using it.

The computer shut downs have not happened while I've been using the computer, only when it was left on its own (with the exception of a chkdsk /r /x for a USB hard drive today - I assume it was still running , as it is a large hard drive and had got to 0% when I left it running)