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How to turn off Windows Vista/Windows 7, 8, and 10 UAC (User Account Control)

Knowledge Article Number 000019209

Sometimes users are unable to install Salesforce for Outlook successfully or receive error messages during the installation. Also they may experience some sync issues or weird behavior such as sync getting stuck on 0% or messages such as unable to communicate with Outlook and so on.

This usually occurs on computers with Windows Vista, Windows 7, Windows 8, or 8.1 and Windows 10 where the User Account Control (UAC) is enabled or set to highest setting

- In Windows Vista, you need to uncheck a box to disable UAC 
- In Windows 7 and Windows 8.x, you simply set the UAC to NEVER NOTIFY to disable it
- IE and a few other built-in Windows applications such as IE Edge may not work if you turn off UAC. Make sure to re-enable and restart after you are done 


You may need to disable this feature in Windows and restart your machine and then reinstall the Salesforce plug-in

To disable the UAC in Windows Vista, do the following.

1. Go to "Start" and type "MSCONFIG" and press enter on your keyboard. It is also possible to use the Windows and R key combination on your keyboard to bring up the "RUN" box and type in "MSCONFIG"
2. Click on "Continue" if the UAC pop up opens up
3. Click on the "Tools" tab.
4. Scroll down and select "Disable UAC" and click on the "Launch" button.
5. A black command prompt windows opens up. When the command is done, you can close the window.
6. Close "MSCONFIG"
7. You MUST reboot the computer for changes to take effect.

To disable the UAC in Windows 7, Windows 8.x, and Windows 10 do the following.

1. Click on the Start button to open the Start menu and type in UAC in the search box and you should see the "Change User Account Control Settings" popping up.

Screen shot below is from a Windows 10 machine

Above screen shot is from a Windows 10 machine

2. On the "User Account Control" pop-up box, click on "YES" or "Allow"
3. The User Account Control Settings opens up, set it "NEVER NOTIFY" and click on "OK"
4. You need to make a selection again on the "User Account Control" pop-up box, click on "YES" or "Allow"
5. Next, you MUST reboot the computer for changes to take effect.


Verify UAC is turned off

To make sure the UAC is turned off you need to check the following Windows Registry key and make sure over on the right-hand side, the value for EnableLUA is 0. If not double click on it and change to 0 and restart the computer

UAC Disabled: 0
UAC Enabled: 1


User-added image

The steps above are the simplest way to modify the UAC but there are also other ways to change this setting as well. Please refer to the following 2 links by Microsoft

Disabling User Account Control (UAC) in Windows 7

If you are not able to complete these steps due to your company's security policies and restrictions, please refer to the following article


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