Click on Uninstall from the drop-down menu after selecting the appropriate antivirus version.Now PC will restart and enter Safe Mode.After that from the drop-down menu select Yes.After completing the downloading, open the setup file and click on the Avastclear option.Then by clicking on Avast Utility uninstall it.Download a setup file named avastclear.exe.Uninstall Avast UtilityĪccording to some of the Avast users uninstalling the utility can solve the Avast update setup is already running problem: If this method does not give you any advantage, then move to the next one given below. After that, a message will pop up on the screen asking about the updated virus details.Click on the End Task option after right-clicking on the file.Find the instup.exe file after launching the Task Manager.

Killing/stopping the backend process of the insetup.exe file can fix this error.

Try upgrading Avast after restarting the PC.

Uncheck the box to disable it and then select the OK to confirm.

Find out the option Enable Avast Self Defense Module.

Select the Troubleshooting option at the end of the menu.

Choose Settings after clicking the main Menu.

It is quite possible that disabling the Avast Self-Defence Module helps you fix the error because it offers protection to the antivirus itself. Try all these methods one by one until you reach the method that helps you to get rid of this error: 1. Here we have mentioned one of the best methods to resolve the Avast setup already running error on PC. How to Solve Avast Setup Is Already Running Error Here we have explained the best fixes for Avast setup is already running error. But if you attempt to end its function it will show the message that the operation could not be completed and access is denied.ĭon’t worry if you are dealing with Avast setup already running error.

exe works to download virus definition updates. The most common reason behind the keep getting Avast setup is already running error is the instup.exe file at the backend. But nowadays when Avast users attempt to reinstall the Avast antivirus after uninstalling it for any reason, they encounter a message that Avast Setup is already running, please try to start the setup later with a View Log option. Avast is one of the most well-known and widely used antiviruses for Windows 10 & 11 PC.

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