I installed a Flash Player days ago. But later on flashing ads appear on the bottom right corner. They change and read "ad by Dealspace". I check system Control Panel but find nothing unfamiliar. I disable and delete a certain add-on from my Chrome browser. But ads are still there. How can I resolve the problem?
I use only one browser on Windows 7 32 bit.

I had to reinstall my OS from scratch. Nothing else worked.

If chrome is your browser they already have a flash player, or shockwave that comes with it. Uninstall the extra flash player, and type in "chrome plugins" and follow the instructions.

Tal - you can't uninstall it.

She can uninstall the one she INSTALLED a few day ago. Why can't she?

There are various ways to prevent uninstall of nefarious sites. I'm too fried thinking about the horrible week I spent on this, because I had several sites to try to get rid of.