I have a problem!!

My problem is my computer keels freezing randomly... I have taken some of the start up programs off and uninstalled some things and it still freezes up. I opened it up and noticed there was a lot of dust. Would cleaning the dust out help? Or would it not? Running multiple programs does not make it freeze right away! But when I get on the internet and do something... ...after about 5 minutes it will come up with "not responding" and then I close it. Then if I try to open it up again it freezes the computer. If I wait it will freeze randomly! What should or can I do? By the way I used my Ipod touch to do this so if there are any spelling mistakes I am sorry.

The CPU overheating can cause the freezing.
As to the dust/dirt , computers are usually happier when they are clean.
You might want to get some "canned air" & blow it out carefully.

A good C drive clean up & defrag may help a lot !
Open My Computer
Right click the C drive & on the menu click Properties
Click on the Tools tab
do a defrag
When that is done go back to the General page & click on Disk Cleanup
Put checkmarks in all the little boxes
Do the cleanup.

If you haven't got it download Malwarebytes,

http://download.cnet.com/Malwarebytes-Anti...&tag=button

Install it, do a scan, & remove everything it finds.

Well we cleaned out the dust we did disk cleanup but not for all of them because then it will just freeze if we do all of them! I dont think it is the CPU freezing up because it sometimes freezes right when it gets to the desk top and it has been off for 7 hours... We can try doing full disk clean up but it will probably freeze!

If disk clean up fails, you could try a fresh install of Windows, or buy a new Hard Drive and install Windows.
Hard Drives fail, and if you arent backed up, your files are gone forever.

um also we can not restore our pc when we wanted to... we clicked a date we wanted it to get to. but it wuldnt go to the next step. It did not freeze though!

ummm i need more help

Never mind!