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Avast Free 2014 silent/unattended install


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i'm looking for a way to install avast without chrome and the toolbar, and preferabele a way to customize what gets installed.

for now i discoverd that running avast_free_setup.exe creates a folder in temp, where instup.exe get executed with the following arguments: "instup.exe /sfx /sfxstorage:"D:\Temp\avastinst\" /edition:1 /prod:ais"

Anyone who knows more switches to configure the install?

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Avast is probably still in customized Inno Setup installer. Try experimenting with recording the install with the appropriate parameters shown in the Inno Setup help documentation.


Nope, they dont work :( For now, the only switch I have discovered is the silent switch of the main installer (avast_free_setup.exe): /SILENT.



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At last I figured it out: First delete the file AswOffertool.exe & any other googletoolbar, etc. files, and then try to execute instup.exe with following arguments: /sfx /sfxstorage="{directory where the setupfiles are stored}" /edition:1 /prod:ais /silent

It works :).


Cheers And Regards.

Edited by niT3_riD3r_pr0
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  • 6 months later...

Hi. This works for me with avast pro 2014 (see here: https://www.avast.com/faq.php?article=AVKB18)

avast_pro_antivirus_setup.exe /verysilent /noreboot /nosounds /instlang fr-FR

Then, for license file integration:

c:\Program Files\AVAST Software\Avast\aswChLic.exe "avast! license file.avastlic"

But I still have to click once to activate the license file.


If I could copy my "avast! license file.avastlic" to

c:\ProgramData\AVAST Software\Avast\license.avastlic

in my script then the all procedure would be automated.



Edited by cortomalese
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  • 5 months later...

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