that is why 3rd party apps arent allowed,read this,
Help free your browser from hackers
Antivirus and antispyware software helps prevent and detect malware. If any malware does manage to bypass your
firewall, antivirus and antispyware software will help remove that potentially dangerous software. If you have
Windows 8 installed, antivirus software is included with the operating system. You are not required to do anything to set it up. If you are using earlier versions of Windows, Microsoft provides
free antivirus software called Microsoft Security Essentials. Many of our partners also offer
antivirus software.
Help restore your browser home page
If your home page keeps changing back to another page, this might be a sign that your computer is infected with a virus. After you have updated your computer with the latest antivirus software, restore your browser home page.
Learn how to change your home page in Internet Explorer
Download Internet Explorer
Help boost browser security by disabling add-ons
Many browser hijackings come from add-on software, also known as browser extensions, browser helper objects, or toolbars. These items can improve your experience on a website by providing multimedia or interactive content, such as animations. However, some add-on software can cause your computer to stop responding or display content that you don't want, such as pop-up ads. Internet Explorer warns you in the notification area of your browser if an add-on is slowing down your computer. You can also view the add-ons that you already have installed and disable the add-ons that you don't want by clicking the gear icon, and then clicking
Manage add-ons.
To learn more, see
Protect yourself when you use ActiveX controls.
Technical assistance
Contact your antivirus software vendor for assistance with identifying or removing virus or worm infections. If you need more help with virus-related issues, go to
Microsoft Support. For worldwide support, see
Worldwide Computer Security Information.
If you prefer to bring your computer to a local repair shop or have a repair person come to you, use the
Microsoft Pinpoint tool to enter your ZIP Code and find a Microsoft partner in your area.