Vista uses a feature called User Account Control or UAC to limit the privileges of regular user accounts. UAC ensures that all user accounts that are not part of the local administrators group run with no administrative privileges. This feature is enabled by default. However, in some situations you may want to disable it and there are multiple ways that you can accomplish this. One method is by using Registry.

To disable UAC through the Registry:

1. Click Start and click Run.
2. Type regedit and click OK.
3. Navigate to the following registry key:
   HKEY_LOCAL_MACHINE Software Microsoft Windows CurrentVersion Policies System
4. In the details pane, locate and double click EnableLUA.
5. Set the value to 0.
6. Click OK.
7. Close the Registry Editor.
8. Restart the computer.

You can enable UAC again but completing the steps listed above and changing the value for EnableLUA back to 1.

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