Usually, most of the runtime errors happen unexpectedly, and the Avast antivirus error 42018 is one among them. This error code is described as the “AVAST_INPROGRESS” error that occurs when the Avast application fails to open or crashes unexpectedly.
Method 1: Closing all conflicting programs
Most of the time, runtime errors occur due to conflicting programs. So, as soon as you encounter this error, try to identify the conflicting programs that are running in the background and close them. To do so, carry out the simple instructions given below.
- Step 1: From your Windows computer’s Task Manager window, go to the Processes section by clicking the respective tab.
- Step 2: Now, stop the processes one by one until the error gets cleared.
- Step 3: After stopping each process, check whether the Avast antivirus error 42018 persists. If yes, stop the other process listed.
- Step 4: You can also reinstall the conflicting error that is causing the Avast antivirus error 42018 runtime error.
