How to lock down Internet Explorer (Win XP)

CyberPatrol • 22 June 2015

The instructions below will guide you through restricting access to Internet Options in Internet Explorer, to prevent users from making any changes to proxy and other Internet settings.

 These instructions involve making changes to your computer's registry and recommended to be performed only by advanced users. Before making any changes to the registry it is advised to make a back-up copy of your current settings. Refer to Microsoft KB article: CyberPatrol will not be held responsible for any problems that may arise from incorrectly changing the registry.

1. Click on 'Start', choose 'Run'. Type regedit and click 'OK' to bring up the Registry Editor.

2. Browse to the following registry string HKEY_CURRENT_USER\Software\Policies\Microsoft.  Right-click on Microsoft folder, click on 'New' and choose 'Key'. Name this key Internet Explorer.

3. Next, create a sub-key by right-clicking on Internet Explorer key and selecting 'New' > 'Key'. Name this sub-key Restrictions.

4. Click to select Restrictions sub-key. Right-click anywhere in the empty space on the right side, click on 'New' and select 'DWORD'. Name it NoBrowserOptions

5. Double-click NoBrowserOptions, change the value data to 1 and click 'OK' (1 is On and 0 is Off). NOTE: If in the future you need to set the locked settings in Internet Options back to allowed, all you need to do is change the value data for NoBrowserOptions from 1 to 0.

6. Close the Registry Editor. Launch Internet Explorer and go to 'Tools' > 'Internet Options'. If all the values have been added properly, the message will be displayed as "This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator" .