This Article Applies to:

Yes, as above, just deleting the folder isn't a clean uninstall option and generally causes issue with the uninstaller. In some cases with AV in particular you have to install and uninstaller, but don't know that to be the case with Avast, per se. I would re-install the product and then use the included uninstaller. Avast Free Antivirus for Windows is an essential security software that prevents viruses, spyware, and other malicious threats from infecting your PC. This article contains instructions to download and install Avast Free Antivirus. Install Avast Free Antivirus. Ensure no other application or antivirus software is running on your PC. When we rebooted, our system was free of any lingering traces of Avast! And ready for a fresh reinstallation or the installation of a totally different antivirus program. If you don't see the Digital Signatures tab in the Properties menu, your setup file is incomplete or corrupted. Try the following solutions: Download your Avast setup file on a different PC (using the relevant link from this article), then transfer the file to your original PC using a USB or portable hard drive.; Refer to the relevant article below and ensure to follow the installation steps. Avast installs a mock operating system in order to complete the uninstallation. It will then force the user to reboot the computer in safe mode. Since Avast was the last operating system to install, it becomes the default OS. When the computer restarts, the Avast OS loads and opens windows in safe mode.

Avast Business Antivirus
Small Office Protection

For unmanaged Avast Business Antivirus and Small Office Protection, you can download the Avast Business Antivirus installer from https://www.avast.com/installation-files and the Small Office Protection installer from here. For Avast Business Antivirus, click on the Business tab and select either the Online or Offline installer for the Antivirus version you have. When the installer is downloaded, you can run it on the device you would like to install Antivirus on.

If you select the Online installer, the other services will be downloaded upon installation of the Antivirus agent. This option is not recommended if you are installing Antivirus on multiple devices at the same, as each machine will individually contact Avast servers to download the other services.

Customizing Installation

Copy the installer file to a location accessible by the end device
Double-click on the installer file to run it
If asked to allow the application to make changes to your device, click Yes
Click Customize, then do one of the following:
- Select Recommended protection to install all components
- Select Minimal protection to install only File, Web, and Mail Shield
- Select Custom protection so you can check and uncheck the specific components you would like to install. For information on which components are not recommended in a Business environment, see Recommended Components for Servers and Workstations.
Click Install and wait while Avast Business Antivirus is installed on your device
When prompted, restart the device

Once you have installed Antivirus on your device, be sure to activate your subscription following the information in Activating Licenses.

Installing with a Logon Script

You can install Avast Business Antivirus as a logon script, as long as you change the file location to reflect the location and name of the install file on your network (serverinstallavast_business_antivirus_setup.exe).

If you are not familiar with how to use a logon script with your domain, search the Microsoft web site for your domain controller's OS and how to use logon scripts. This article details how to use logon scripts.

Script Text

The script below checks for the file bccinfo.dat and, if it exists, will abort the installation to prevent a reinstall each time the device logs on the network.

IF EXIST 'c:programdataAvast Softwareavastbccinfo.dat' GOTO END

:32-bit

if exist %SystemRoot%SysWOW64 goto 64-bit

serverinstallavast_business_antivirus_setup.exe

echo 'Avast Business Install' >

goto END

:64-bit

serverinstallavast_business_antivirus_setup.exe

echo 'Avast Business Install' >

Avast Free Antivirus Installation Stuck

:END

Customizing Installation

Installing with a Logon Script

Avast Free Antivirus Installation Stuck

Avast Free Installation Stuck Windows 10

Avast Free Antivirus Installation Hangs