Avast update helper is a tool that scans and updates the broken and outdated drivers on your computer. The scan and update process is done automatically. Recently, some Avast Secure Browser users have encountered an error that shows the following error message: Avast update helper error 1603. Most users have encountered this error while updating Avast from the version 18.4.2333 to 18.4.2338 after updating their Windows 10 computer’s 1803 Spring update. Now, if you’re also encountering the same error, then perform the following troubleshooting methods to resolve it.
You have to download the Comodo Antivirus spyware from the official Comodo site and the steps are given below.
If not, perform the next troubleshooting method.
Some users say that uninstalling Avast Secure Browser has resolved the Avast helper error 1603.
Now, check whether the Avast error 1603 is resolved. If not, perform the next troubleshooting method.
If the update helper error 1603 persists even after uninstalling the Avast Secure Browser program from your computer, then disable the Avast application’s Behavior Shield.
To do so, follow the below instructions.
Now, check if the Avast Update Helper error 1603 is resolved.