PC locks up or freezes NEED HELP

[anasta]

During casual use of my PC sometimes I can go 2 days before it locks up or freezes. My mouse will just stop moving or if I am listening to something you will hear that sound just repeat over and over. I cannot do anything, everything just comes to a halt!

I have to reboot the PC by holding in the POWER button and hopefully get lucky that it does not lock up again.

It seems to be the same pattern over and over, works for 1 or days then locks up, and when it locks/freezes up and happens maybe 3-6 times before I can get it started again to work for 1 or 2 days straight without interruption.

If someone can help I would really appreciate it.

Here are the specs:

Operating System System Model
Windows XP Professional Service Pack 2 (build 2600) VIA Technologies, Inc. VT8363
Enclosure Type: Desktop
Processor a Main Circuit Board b
1000 megahertz AMD Duron
32 kilobyte primary memory cache
4096 kilobyte secondary memory cache Board: 8363-686A
Bus Clock: 100 megahertz
BIOS: Award Software International, Inc. 6.00 PG 06/15/2000
Drives Memory Modules c,d 1024 Megabytes Installed Memory
120.01 Gigabytes Usable Hard Drive Capacity
82.47 Gigabytes Hard Drive Free Space

SAMSUNG CD-ROM SC-152C

Canon iP6600DStorage USB Device [Hard drive] -- drive 2
ST380011A [Hard drive] (80.03 GB) -- drive 0, s/n 5JVWNPBY, rev 8.01, SMART Status: Healthy
WDC WD40 0UE-00HCT0 USB Device [Hard drive] (40.01 GB) -- drive 1

Controllers Display
Standard floppy disk controller
Primary IDE Channel [Controller]
Secondary IDE Channel [Controller]
VIA Bus Master IDE Controller LogMeIn Mirror Driver [Display adapter]
RADEON 7000 SERIES [Display adapter]
NEC LCD1770GX [Monitor] (17.1"vis, s/n 55108290TA, May 2005)
Bus Adapters Multimedia
ALi PCI to USB Open Host Controller (3x)
Standard Enhanced PCI to USB Host Controller
VIA Rev 5 or later USB Universal Host Controller (2x) Sound Blaster Audigy

Other Devices:
OHCI Compliant IEEE 1394 Host Controller
HID-compliant device
USB Human Interface Device
Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
PS/2 Compatible Mouse
Generic USB Hub
USB Composite Device
USB Mass Storage Device (2x)
USB Printing Support
USB Root Hub (6x)

Printers:
Canon iP6600D on USB001
eFax 4.2 on eFax_4_2_Port
Microsoft Office Document Image Writer Driver on Microsoft Document Imaging Writer Port:

[Cricket]

Have you opened up the case and cleaned out your computer yet? If it's dusty in there you need to clean it out really well. Dust build up can cause a computer to overheat and an overheating computer will lock up or freeze.

Is this a home built or name brand computer?

What brand power supply are you using?

Do you scan the computer regularly with updated security scanners?

Cricket