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Windows 8 - User access control - command line installs.

Posted on 2013-12-04
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Last Modified: 2014-08-04
Hi all,

Just started using Windows 8 for testing on my domain. Before starting an unattended build through CCM Im just installing software to test compatibility.

One issue that I have come across is not being able to run silent command line installs. Even with a simple command line install of a MSI file with a /q im getting nothing. I right click and run as administrator (though logged in as a administrator) - nothing.

OK, so I thought it must be the UAC. I turn this down to its lowest setting and repeat the process. Still nothing.

Finally i run disable the UAC completely via the registry and Hooray it worked!  

This seems a little extreme in order to get a command line silent install to work.

Can anyone shed any light on this?
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Question by:MJB2011
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Expert Comment

by:McKnife
ID: 39696125
Hi.

This Problem was present with Vista and win7 also.
Do you know what elevation is, or where should we start?
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Author Comment

by:MJB2011
ID: 39696506
THanks McKnife having previously built and deployed a windows 7 unattended build im more than aware of elevation, however I was able to get past most issues with windows 7 by simply dropping the UAC to its lowest setting. Rebooting and continuing. However with windows 8 this doesn't seem to be the case.

It doesnt appear that I can install anything silently via command without running the following

C:\Windows\System32\cmd.exe /c %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
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McKnife earned 1000 total points
ID: 39696546
Ok, some hints for a start: you cannot right click .msi files and select "run as administrator" out of the box. Either they auto-elevate (if UAC is on, they almost always do), or you would need to start the command line elevated and start the msi from there.

Better approach: use software deployment via GPOs or GPO-startup scripts. The startup scripts are executed as user "system". The system account is not stopped by UAC.
Leave UAC as it is. In no software rollout I did (Vista/7/8) I ever needed to tune UAC.

If you feel that is not helpful, please let's take one MSI like 7zipx64 and you tell me what problems you would have installing that MSI and what method you use.
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LVL 57

Expert Comment

by:McKnife
ID: 39756119
Hi MJB2011.

I hope I could help you. If you need more info, just say, as the C grade indicates that my solution was explicitly lacking information.
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Expert Comment

by:BruceWWilson
ID: 40240226
I have a system agent I would like to install on 59 desktops in separate workgroups (no domain). The installer is .msi with no prompts. I would like to deploy the software remotely and run with a batch file. UAC stops the install with a prompt for user interaction to agree to run the software. I am not terribly familiar with ELEVATION but I have tried to run the installer from an ADMIN command line.
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