Add-ons are programs that supplement your web browser with additional features such as tool bars and ActiveX controls. Some come pre-installed in Internet Explorer while some are installed via the Internet. It is relatively easy to install Internet Explorer add-ons. They require your permission before getting installed on your system. But some may do without your consent.
Run Internet Explorer in No Addons mode
There are four ways you can start Internet Explorer in the No Addons mode.
1] In Windows 7, to run your Internet Explorer in the no add-ons mode, Open Start > All Programs > Accessories > System Tools > Internet Explorer (No Add-ons).
iexplore.exe -extoff
This will start IE with no add-ons.
3] Open a command prompt windows, type the following and hit Enter, to open IE in No addons mode:
“%ProgramFiles%\Internet Explorer\iexplore.exe” -extoff
If you use the IE in no addons mode frequently, you can also create desktop shortcut using this for the location field.
4] Open Internet Explorer and type about:NoAdd-ons in the address bar and hit Enter.
Then
if you need to, the through Internet Options > Manage Add-ons, you
can enable or disable each add-on to identify which, if any, add-on is
creating problems. Useful if your Internet Explorer crashes or freezes frequently and you want to make it run faster.Source: http://www.thewindowsclub.com/run-internet-explorer-8-in-no-add-ons-mode