User Account Control is security feature of Windows Vista. The purpose of this feature is to reduce potential of security breaches in the system. The UAC forces users that are part of the local administrators group to run like they were regular users with no administrative privileges
Although UAC improves the security on Windows Vista, under some scenarios you might want to disable it. Some users also finds UAC annoying because of the extra mouse clicking it brings into their system. However disabling UAC will make your system less secure.
Here are the two methods on how you can disable User Account Control:
Method 1: Disabling via control panel
— Open up Control Panel
— Go to User Accounts
— Look for ‘Turn on or off User Account Control”
On the next screen uncheck the box for “Use User Account Control (UAC)”, and then click on the OK button.
Restart your computer to take effect
Method 2: Disabling from the command line
Type this code on your Vista command line to Disable UAC
C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
Use this code to enable back UAC
C:\Windows\System32\cmd.exe /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 1 /f