To enable the execution policy, run: set-executionpolicy unrestricted. PowerShell's execution policy settings dictate what PowerShell scripts can be run on a Windows system. If you encounter issues using the script, you may need to enable the execution policy, or the installation path is not default (in which case you must amend the path in the script). avast will require a system restart - connect to the network and restart. On a reboot (for total safety disconnected from the network) then re-install avast. If you have the install file for avast fine, if not and you can download it it in safe mode then do so. Use PowerShell to run the script on the device For an OS change - I believe the need would be to uninstall avast while in safe mode.Download the Avast silent uninstall script.Click Ok, Disable in the pop-up to confirm.Uncheck the box beside Enable Self-Defense.Click the Troubleshooting tab in the General section.Disabling Self-Defenseīefore you can run the silent uninstall script, you must disable the Antivirus's self-protection component For managed devices, see Command-Line Installation Parameters. If you wish to uninstall Antivirus from multiple devices, you must repeat this process on each of them.ĭo not use this process for devices managed by Business Hub or On-Premise Console. If you want to silently uninstall Essential/Premium/Ultimate Business Security or Small Office Protection from your device, you can do so using a PowerShell script. Essential/Premium/Ultimate Business Security.
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