Computer shutting down

My computer keeps shutting down, at random times. It could be on for 2 days and then shutdown or it could be on for 5 min and then shutdown. I have got a couple of programs to tell me my computer temp. I am not sure whats making my computer go off so im going to post all the stats I got from PC wizard, maybe someone can then see if something is wrong. Also if there is any programs that you know that could tell if there is a hardware failure or a accurate temp program please let me know thanks.

MAINBOARD
LPC bus - yes
PCI Bus - yes
Bus PCI-Express -yes
USB Bus -
SMBus/i2c Bus - yes
Bus HyperTransport -yes
Bus CardBus - No
Bus Firewire- yes

PROCESSOR
Voltage - 1.350 V
Processor Temperature - 71.6 F
Processor Fan - 10 rpm
FPU Coprocessor - present
Core 1 Activity 3%
Core 2 Activity 0%

VIDEO
OpenGL - yes
GDI - yes

DEVICES
HID Devices - yes
TWAIN Device - HP Deskjet F300 TWAIN
TWAIN Device - USB Video Device
WIA Device- USB Video Device
SCSI Host #0 - 1 Device
SCSI Host #2 - 1 Device
Trusted Platform Module - no

POWER STATUS
Power Status - yes
Battery - no
Supply - main supply
Active Power Scheme - Always On
UPS - No
ACPI Tables - 8

VOLTAGE,TEMPERATURE and FANS
Voltage CPU -1.36 V
DIMM - 3.36 V
+3.3v - 1.81V
+5v - 4.96 V
+12v - 11.71V
DIMM - 1.07V
VTT - 1.81 V
VBAT -3.07 V
Chassis Fan - 3082 rpm
Processor Fan - 10 rpm
Power/AUX fan - 10 rpm
Processor Temp - 71.6
Processor Temp (Core 1) 87.8 F
Processor Temp (Core 2) 93.2 F
Power/Aux - 53.6 F

On CPUID Hardware Monitor it has
GPU Core - 46C (114F)
HDD - 20c(67F)

Is anything overheating?

The first thing to do is open the box and make sure that both fans are spinning. There is one on the power supply and one near the CPU.

If it's rebooting and bot just shutting down, then uncheck automatic reboot in system properties, startup and recovery.

its not restarting, it just shuts down

Did you check the fans?

Go to Safe Mode... (after checking the fans and confirming that they are working okay)... scan your computer for adware and/or virus (prefferably and)... delete bad stuff... try Ad-Aware SE... search for it in Download.com... too lazy to give you a link right now.

both of the fans are working

my computer shuts down most of the time, if im trying to burn something or playing any game.

sorry for double post

It sounds like a memory problem. Is there anything in the event viewer?

event viewer?

An error was detected on device \Device\Harddisk0\D during a paging operation.

My computer>Control Panel>Administrative Tools>Event Viewer if you haven't found it yet...

Anyway, go to safe mode and defragment your drive.

this is what it says under event viewer.

An error was detected on device \Device\Harddisk0\D during a paging operation.

what exactly does that mean?

Since it says paging operation, that sounds like a problem with the swap space on the HD. You can set the system not to use a page file at all and let the memory do all the work, as a test.

To do that, go to the control panel, system, advanced, performance settings, advanced, virtual memory change and click no page file.

I did that, But my computer still just shuts down when i try playing a game.

Then I would run a memory test.