UAC and Administrator Mode

UAC (User Account Control) is a security feature in Vista and above. It aims to make it much more practical to run as a standard user than in Windows XP. When UAC is enabled (which it is, by default), users and the programs they launch will have standard user privileges by default. This means that important operating system locations (like the Windows folder) and registry keys are protected against accidental or malicious modification - in order to make changes to these locations, you need to elevate the task by means of a UAC prompt.

Unfortunately Microsoft somewhat botched the implementation of UAC in Explorer. Vista was widely derided for the sheer number of UAC prompts you needed to click through to perform routine or mundane tasks. Simply creating a folder could result in four individual prompts, leading many people to simply turn UAC off altogether.

In Windows 7, Microsoft over-reacted to the criticism and have dramatically toned down UAC - unfortunately to the detriment of your system security. The default UAC settings (which use a white-list to prevent any UAC prompts at all for Explorer and other Windows components) reduce it to the mere appearance of a security system - and at the same time, disadvantaging other third-party tools that don't have the ability to be white-listed.

We have always viewed UAC as a commendable (if poorly-executed) attempt to improve the security of Windows, and we recommend both a) leaving it turned on, and (in Windows 7 or above) b) changing the level in User Account Control Settings to Always notify. Opus natively supports UAC, in a much more sensible way than Explorer, and you won't find performing administrative tasks in Opus difficult or irritating at all.

• When performing a file operation in a protected location, like C:\Program Files, Opus will display a UAC prompt as in the screenshot above. It tries to be smart about this - it will only prompt once per function, unlike Explorer which can sometimes prompt up to four times for the one operation.
  
  
• If you are performing multiple administrative tasks, you can use the Administrator Mode function to temporarily elevate the current Lister.
  To activate Administrator mode, click the  Admin button on the default toolbar. Opus will display a dialog that lets you specify a timeout after which Administrator mode is automatically deactivated. This is for security reasons, as it avoids the risk of accidentally leaving a Lister elevated longer than necessary.
  
      
  
  Select the timeout, and click OK. Opus will then display a UAC prompt to elevate, and after that the Lister itself will remain elevated for the specified period (or until you turn the mode off manually). The title bar of the Lister window changes to indicate this:
  
          
  
  Any operations you perform in an Administrator mode Lister will be automatically elevated - no further UAC prompts will need to be shown. Note though that any programs you launch from that Lister will also be elevated.
  
  
• You can configure a toolbar button or hotkey that launches an external program to launch the program elevated using the @admin command modifier.