Why does my internet browser keep closing?

[LovelyLotus]

A relative of mine gave me their old laptop, I'm only going to be using it until I get enough money to buy a better laptop but in the meantime there I things I have to get done using the internet. My relative told me that there used to be virus's on the computer, I scanned the laptop and did find some virus's. So I used an anti-virus software to remove the virus's, now it says there gone, but I'm still having problems.

After about ten minutes my internet browser will shut down, without any warning or messages. I've tried using internet explorer, Google Chrome, and now I'm using Firefox. I've already gone through my add-ons, redownloaded my flash player, adjusted the firewall, reset the internet, and deleted everything from the computer and it's still doing it. I don't know what else to try anymore.
Is there any hope for this laptop? Any ideas what it can be and how I can fix this?

Thank you

[Marduk]

Maybe the wireless device in the laptop is heating up and dying at the 10 minute mark. Is the laptop still connected to internet when this happens? If you are losing your internet get a Belkin Wireless USB adapter to replace the faulty wireless in laptop. I use them in my desktops and they work very well.

[Carling]

Quote : Is there any hope for this laptop?
Reply : There is more hope for your old computer than there is for a new windows 8 computer.

Quote : Any ideas what it can be and how I can fix this?
Reply : Yes stop using windows and learn that windows and Mac are NOT the only computer operating system in the world. There are other Free computer operating systems available that are faster, Superior and far more advanced than Mac 7.1 or windows 8.1 are.

You can check them out here.
Zorin Linux will let you have any windows desktop at the click of the mouse button, you can have Vista, Xp, win 7 or the Mac OS/x desktop plus other desktops you have never seen before. go to their website, do the tour of the operating system and software
http://zorin-os.com

here are some other free operating systems that will run on your old computer these are up to date November 2013

http://sparkylinux.org/download
http://www.centrych.org/
http://www.os4online.com/
PC Linux have a monthly Magazine that can be downloaded with loads of tutorials on how to use it
http://www.pclinuxos.com/
http://www.opensuse.org/
http://www.kubuntu.org/
http://antix.mepis.com/
http://www.knoppix.org/
http://solydxk.com/

Now you know that MS and Mac are not the only computer operating systems in the world