How to clear a frozen computer screen/website?

Many times my computer gets frozen when watching videos.


At that time the icon and the mouse does not function. How to get out of this situation? Pl.How to clear a frozen computer screen/website?
Ctrl+Alt+Del -%26gt; go to task manager and kill the process thats not responding ...





if u are in win 98 then u will see the list of programs though it won't tell u which one is not responding properly, kill the one that is causing the problem...How to clear a frozen computer screen/website?
Scan your computer with this free anti-virus program:


http://www.avast.com/eng/download-avast-鈥?/a>





Scan your computer with this free anti-spyware program:


http://fileforum.betanews.com/detail/Spy鈥?/a>





Scan your computer with this free anti-adware program:


http://www.lavasoftusa.com/products/ad_a鈥?/a>





If all this doesn't fix the problems, your computer hardware isn't fast enough to handle your computer activities, so the only solution would be to upgrade parts.
Make sure you have all windows updates and also spyware free