NOTE: Turning off UAC reduces the security of your computer and may expose you to increased risk from malicious software. However, clicking Yes on the prompts without reading them is the same as turning them off. Do you read all the prompts that UAC pops up before you click on Yes? I guess it will depend on how strrong your nerd meter reads. I know what I am doing, so I turn off the warning that UAC provides.

For Vista Business and Ultimate versions:

your account needs to have admin rights in order to do any of this. If you are unable to do this, then the account in which you are logged in as is not an admin account.

On the search box of windows, type Local Security Policy- Search result is a the new Management Console for Vista. You will see a window divided in two panels. Right Hand side, and a Left Hand side. On the LHS you wan to click to expand the local policy. Then select Security Options to bring out a list of policies on the right hand side panel. Once you see the list, click on the top bar to sort by reverse alphabetic order. So now your list should start with items listed with U alpha.

Now locate “User account control: Behavior of the elevation prompt for Administrators in Admin Approval Mode”. Double click to open it, and from the drop down menu select, Elevate without Prompting.

There are two other policies that you may want to look at. I have attached a pic of how it looks in my PC for you to compare. DO NOT mess up other items, or else your new PC might not work properly.

For Vista Basic and Home Premium:

On these versions, you can only turn off the UAC [User Access Control], which asks for every small little thing, like Do you really want to pee, – Yes, any doubt.  =) MS did not include the Security Policies tool box in these version, so it is not possible to tweak some other features, like you saw being done above.

But, if you are a entry level User, then I would recommend not turning UAC off, as it may put your system at risk, provided you read all the warning signs that it pops up.

To turn off UAC

Source: technet @ MS

1. Click Start, and then click Control Panel.
2. In Control Panel, click User Accounts.
3. In the User Accounts window, click User Accounts.
4. In the User Accounts tasks window, click Turn User Account Control on or off.
5. If UAC is currently configured in Admin Approval Mode, the User Account Control message appears. Click Continue.
6. Clear the Use User Account Control (UAC) to help protect your computer check box, and then click OK.
7. Click Restart Now to apply the change right away, or click Restart Later and close the User Accounts tasks window.

Alternately, if you are running the Basic or Home Premium version, then you can also modify the registry to achieve the goal. Some people like hacking the registry in good old ways. =) So I have compiled a registry key hack, that you can download and run. Download it here System.reg Once you have downloaded it, rename the file name from System.reg.txt to System.reg and run it. Finally reboot your computer and see if it wroks for you.