It sounds like "Freewebhosts" have added some adware/malware type code to your browser. There are a few options open to you-
If you are using Internet Explorer - Goto Start/Control panel/Add and Remove Programs - look for Microsoft Internet Explorer and choose Change/Remove and then click on Repair Internet Explorer.
If you can`t see that option then in Internet Explorer goto View/Toolbars and look for any reference to freewebhost that is ticked if so remove it.
If all else fails you can reinstall the browser to take it back to it`s original condition - rememeber to save your book marks prior to doing this.
(One more thing if you are on XP try the System Restore tool Start /All programs/Accessories/System Tools/System Restore)
This site lists the process in Task Manager so you can check which ones are which - often the processes are intrinsic to Windows so cancelling them can cause problems.
To speed up the machine try a defrag,clear your temp files and uninstall any programs no longer needed.Also have a look here.
Hope this is of some help...
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