1. Scan and remove any adware using an up-to-date anti-adware program.
2. Clear your browser’s cache and cookies.
3. Make sure your firewall and anti-virus software are up-to-date and running.
4. Install a reputable ad-blocking program.
5. Consider resetting your browser, disabling any add-ons, or even reinstalling it.
6. Make sure you are running the latest versions of your operating system and major applications.
7. Change passwords on all accounts and web services.
8. Contact your Internet Service Provider (ISP) for assistance.