Hi,
Welcome to this site, and I hope my suggestions will help you. LT has already given some, and some of these will be a repeat, but in step-by-step instructions. You have Spyware, and if you are not running Spyware programs, you really, really need to do the folowing:
If you think you already have Spyware/Advertising Ware in your computer, run these as follows:
AdAware at:
http://www.lavasoftusa.com
Download: AdAware_SE V 1.06
CWShredder at:
http://www.intermute.com/products/cwshredder.html
(CWShredder is intended only for removal of CoolWebSearch files; placed as spyware on the harddrive). It is not a "stand alone" scan, but needs to be run. Download the free version by clicking on "Download stand alone version of CW Shredder".
Both of the above programs run better and much faster when run in SafeMode.
To get into SafeMode:
Re-boot the computer, and immediately after starting up, Press and hold down, F8, at top of keypad.
When the options show on the screen, use the up and down arrow keys on the keyboard to select
"Safe Mode".
Press Enter
It's best to run the AdAware scan first; 3 times; then re-boot.
Then, run the AdAware scan again 3 times. Then, run CWShredder.
Re- Boot.
Reason for running so many times:
Some of these trojans' files can be deleted the first time; leaving some others; but on re-boot, they re-write the files that were deleted.
Running multiple times deletes most of it the first
Time.
If you wish to have a great program, after you clean out Spyware/Advertising Ware:
This program stops this stuff from getting into the computer in the first place, by placing URL's in the browser, stopping them instantly. One of the Very Best free programs anyone can download!
SpyWare Blaster 3.4
http://www.javacoolsoftware.com/sbdownload.html
Free online scan at:
http://www.trendmicro.com/spyware-scan/
These pop-ups will NOT go away until you run some of the above, or similar programs. You can safely delete anything they find after scanning.