Microsoft have released article KB2019411 explaining how IT administrators can disable a Browser Choice screen for their users using a simple registry key.

Key: HKLM\Software\BrowserChoice 
Value: Enable
Data: 1 (REG_DWORD) = Enabled
Data: 0 = Disabled

Now of course you can deploy registry key using Group Policy Preferences which will make it much easier for IT administrators disable this screen.

Step 1. Edit a Group Policy Object that is applied to all the workstation you want this Browser Ballot disabled.

Step 2. Navigate to Computer Configuration > Preferences > Windows Settings > Registry and create a “New Registry Item”

Step 3. Type “Software\BrowserChoice” in the Key Path then type “Enable” in the Value name, then select REG_DWORD as the value type “0” in the value data and then click “OK”.

If all that is to much hassle to do all that below is a link to the Group Policy Preference XML file you can just copy into the policy.

Links:

• More information on the Brower Choice http://support.microsoft.com/kb/976002
• More information on the Disable registry key http://support.microsoft.com/kb/2019411
• Also check out Aaron Parkers blog here for more information http://blog.stealthpuppy.com/windows/disable-the-browser-choice-screen