computer hangs

Hi,
I'am using

Intel® Core™ i5 CPU 650 @ 3.20GHz
motherboard - MSI IONA
bios ver - 03/03/10 20:25:08 Ver: 5.13
memmory - 4.00 GB ram
Microsoft Windows 7 Home Premium 32-bit 7601 Multiprocessor Free Service Pack 1

my computer always & only hangs few minutes after system fully boots up.

i have already went to spybot forums - http://forums.spybot.info/showthread.php?t=66640&page=3

They directed me here, i think it is a tech problem rather than malware trouble.
in windows 7 - "'Event viewer'', there are some errors showing in it. The time of the errors is the same time the system hangs.

i have attached those details, i thought it will be useful in telling you. Please help.

Try this, see if you can isolate what is causing the hang: How to perform a clean boot to troubleshoot a problem in Windows Vista or Windows 7

Hi yukukuhi, As well as following Ztruker's advice as provided by his post above, you need to be aware that your operating system is being choked and has insufficient space on your hard drive boot partition to operate effectively…. You C drive is shown in your logs as having 5 or 6% free space available…… for windows to operate correctly( creating the appropriate temporary files etc it needs much more space than that. It is recommended that you remove data files from your c drive to achieve a free space in that partition of around 25% this will allow Windows to work to its true potential and can help prevent hanging….. This step alone may not be the fix you are looking for and may or may not assist with the hanging issue……. However there is another area that is worth addressing….. Someone has at some time installed on this computer peer to peer file sharing (P2P) in the form of utorrent For P2P file sharing to work effectively it is necessary to grant access to this application through your defences…. ( for example your firewall) P2P file sharing is a large vector for the distribution of malicous code, undesirable applications, worms, trojans, viruses etc. and you would be doing yourself a favour by uninstalling all P2P applications and deleting permanently any files downloaded via this medium where their provenance is not 100% Post back after you have completed all these steps and let us know how you are getting on Regards paws

Try this, see if you can isolate what is causing the hang: How to perform a clean boot to troubleshoot a problem in Windows Vista or Windows 7

I did Step 2: Determine what is causing the problem

I unchecked some unwanted services and made 10-15% of disk space. It's not hanging anymore, earlier it hangs once in 3 days now it's more than one week it doesn't hang. All I have to do now is free disk space upto 25%.

Thanks Ztruker & Paws for helping, thanks man.

Hi yukukuhi, That's good to hear. Well done! Once you have over 15% or 16% free disc space you will find that you are able to defragment your drive and this may be beneficial if you have not done this in the last 6 months or so. Regards paws