Uninstall IE7

To uninstall Internet Explorer 7 and revert to Internet Explorer 6:

Method 1: Using the "Add or Remove Programs" tool

1. Click "Start", click "Run", type "appwiz.cpl" (Without Quotes), and then click "OK". 
2. In the list of programs, click "Windows Internet Explorer 7", and then click "Remove". 
3. Follow the wizard instructions to uninstall Internet Explorer 7. 
4. After you uninstall Internet Explorer 7, double-click the Internet Explorer icon to verify that Internet Explorer 6 is restored. 

Method 2: Run the Spuninst.exe program that is in the IE7 folder

If you cannot uninstall Internet Explorer 7 by using Method 1, use the uninstaller file that is available in the IE7 folder to uninstall Internet Explorer 7. To do this, follow these steps:

1. Click "Start", click "Run", type "%windir%\ie7\spuninst\spuninst.exe" (without quotes), and then click "OK".

Note: In this command, %windir% points to the Drive :\Windows folder. The placeholder Drive represents the hard disk partition that contains the Windows operating system files. By default, the IE7 folder is a hidden folder. Therefore, you may have to make this folder visible. To do this, follow these steps: 

a. Open "Windows Explorer". 
b. On the "Tools" menu, click "Folder Options". 
c. Click the "View" tab. 
d. In the "Advanced settings" list, under "Hidden files and folders", click "Show hidden files and folders", and then click "OK". 

2. Follow the wizard instructions to uninstall Internet Explorer 7. 
3. After you uninstall Internet Explorer 7, double-click the Internet Explorer icon to verify that Internet Explorer 6 is restored. 

Incase you need any further information in this regard; you can refer to the article provided:

Article: How to uninstall Internet Explorer 7

http://support.microsoft.com/kb/927177