Many administrators are going to be taken by surprise when they find out that Internet Explorer 7 is going to be installed automatically via Windows Update.
There are considerable changes that could cause many headaches. Most administrators would prefer to decide when Internet Explorer 7 is deployed on their network.
This is why Microsoft has released the Internet Explorer 7 blocking tool. It can be downloaded from here at Microsoft’s website.
Once you download and extract the package you will see that it is a command line tool. You simply call the script with the computer name and /b

Alternatively you can simply create a registry key that will block the install. It is located under this key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Setup\7.0
The key name is: DoNotAllowIE70
Setting this to 1 blocks the install, setting to 0 allows the install.

If you are unsure of modifying your registry, IntelliAdmin has created two free tools to make the changes for you.
1. For changing the setting on remote machines:

[ Download IE7 Blocking Tool for Remote Computer ]
2. And, finally if you need to just do it on your local system this will do the trick:

[ Download IE7 Blocking Tool for Local Computer ]
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