arcserve-KB : Disable UAC in Guest VM for VMware VIX Operations.

Last Update: 2016-04-25 14:37:27 UTC


For all the backup operations to complete succesfully using ARCserve Host Based VM Backup, UAC (User Account Control) needs to be disabled in the Guest Virtual Machine:

We can disable the User Account Control in two ways. 

Method 1:

Click Start, and then click Control Panel.

In Control Panel, click User Accounts

In the User Accounts window, click User Accounts.

In the User Accounts tasks window, click Turn User Account Control on or off.

If UAC is currently configured in Admin Approval Mode, the User Account Control message appears. Click Continue.

Clear the Use User Account Control (UAC) to help protect your computer check box, and then click on Ok.

Click Restart Now to apply the change right away, or click Restart Later and close the User Accounts task window.

Method 2:

In some cases we may have to disable the UAC by modifying the Registry Keys. Below are the steps to disable UAC using Registry Editor.


Select EnableLUA (DWORD) and change the value to 0 and reboot the system.

More Information:

1.User Account Control Step-by-Step Guide:

2. Disabling User Account Control in Windows 8 : 

This article contains information about modifying the registry. Before you modify the registry, make sure to create back up of the registry and ensure that you understand how to restore the registry if a problem may occur. For more information about how to back up, restore, and edit the registry, please review the relevant Microsoft Knowledge Base articles on

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