You should restore your Internet Explorer browser to default settings in order to get rid of browser redirects, pop up ads, fake error alerts and other malware. All of your stored bookmarks and passwords will stay safe.
Open the Internet Explorer browser. Locate and click Tools Menu icon in the upper-right corner of the page. Go to Internet options menu.
Go to Advanced tab and click Reset… button below.
In the Reset Internet Explorer Settings window, check the Delete personal settings check box and click the Reset button.
Next, click Close button in the confirmation box.
Once the task is complete, Internet Explorer will ask to restart your computer. Do NOT hurry to restart your PC! Prior to the restart of computer, you need to clean your Windows Registry and clean web browser shortcuts.