How to disable secure Desktop in Windows 7/Vista
Microsoft introduced User Account Control (UAC) in Windows Vista to protect the unauthorized installation of any software's. Administrator of the system only can install the software's and other users require administrator password to install the software.
User Access Control is the software that will prompt for administrator password or allow the elevation permission to install any software and it will prompt for any changes in the software. Registry modifications are also not allowed in the Windows Vista and Windows 7. Once the UAC pops up then the background screen will be in active and you cannot do any activity other than cancelling or enter the admin password to continue. It is one of the frustrating pop up for a user.
Microsoft calls it as Secure Desktop.
Windows Vista users face lot of problem with UAC and modifying the settings of the UAC is not easy in Windows Vista. Windows Vista/7 users can disable the UAC.
By disabling the UAC will allow programs to install the software's automatically to the system and Windows Vista/7 is not completely protected when you disable UAC
Disabling UAC in Windows 7
Disabling UAC in Windows 7 is easier and flexible compared to Windows Vista. Windows Vista requires either Local Security Policy or Registry to disable UAC.
In order to disable UAC in Windows 7, Click Windows Vista start button and click Run prompt or press Windows key and R to open the run prompt and type useraccountcontrolsettings to open the User Account Control Settings.
The next way is open the control panel, select All Control Panel Items then type UAC on the right top of the Window, select User Account Control Settings link to open UAC settings Window
Finally way is type msconfig from the Windows Run prompt will open System Configuration Window, select Tools tab and then select Change UAC Settings, click Launch button to open User Account Control Settings Window.
Once the User Account Control SettingsWindows is opened then move the slide bar to Notify me only when programs to make changes to my computer 9do not dim my desktop) option and it is not recommended by Windows and click OK will prompt for the elevation and confirm to disable the UAC (check the below screenshot).
Disabling UAC in Windows Vista
In order to disable the UAC in Windows Vista Business / Ultimate edition users, open the Local Security Policy from Windows startup search by typing Security will show you the Local Security Policy and open the Local security policy will open Local Security Policy Window. From the left side panel expand Local policies and then select Security Options will show the list of policies options on the right side window and scroll down to User Account Control Switch to the secure desktop when prompting or elevation and select, double click to open and window to change the settings (Check the below screenshot).
Once the Window is opened, then select Local Security Settings tab and select Disabled option and click OK to disable the Secure Desktop.
Windows Vista home users don't have Local Security Policy, so they need to disable the secure desktop by modifying the registry key.
Click Windows Vista start button and click Run prompt or press Windows key and R to open the run prompt and type Regedit to open the registry. Once the Windows registry is opened then navigate to
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System and then right click "System" and select new DWORD and then type "PromptOnSecureDesktop" and then make the values of the new DWORD to 0 will disable the Secure Desktop in Windows Vista Home User edition (Check the below screenshot)