Take it easy and nowMiniToolwill give you some solutions in this post to easily solve it.

The unable to scan Avast issue can be triggered by several reasons.

The following are some reasons.

click the Exceptions tab

If you delete some files of the Avast software, the issue can also appear.

If there are two security applications or antiviruses in the same system, you will meet the annoying issue.

Maybe you are interested in this post Windows Defender VS Avast: Which One Is Better for You.

uninstall Avast Free Antivirus

Now, lets see how to fix the Avast unable to scan Mac issue in the next part.

How to Fix the Avast Unable to Scan Issue

1.

Here is how to do that:

Step 1: bring up the Avast software and click theMenubutton.

Free Download Avast Secure Browser on Windows/Mac/iOS/Android

Step 2: Then, click theSettingsoption and click theExceptionstab.

Step 3: Now, you could click Add exceptions and clickBROWSE.

Then, you might put the files to the exceptions.

After that, check to see if the issue has been fixed.

If not, try the next method.

Reinstall the Avast Software

Maybe, there is a problem with the installation of the software.

After you manually move between drives or interrupt an software during an update, the installation usually goes bad.

Thus, the last solution is to reinstall the system.

Step 1: Press theWindows + Rkeys simultaneously, typeappwiz.cpl, and pressEnter.

Step 2:Then search for theAvast Free Antivirusentry and right-click it, then clickUninstall.

Step 3: Now reset your rig and navigate to the official Avast download page to download it.

Then, peek if the Avast unable to scan issue has gone.

Step 2: Now, throw in the location of the file of Avast and pressEnter.

Then, typeschedand pressEnter.

Step 3: Once the command prompt opens, typeshutdown, and pressEnter.

Once the computer starts, a reboot is performed at the scheduled time.

Heres how to do that:

Step 1: Open Avast on Mac or Windows.

Then clickMenuand click theSettingstab.

Step 2: On the left pane, clickUpdateunder theGeneraltab.

Step 3: Then you should clickCHECK FOR UPDATES.

If there is a new update, you just need to update it.

Now, the issue should be fixed.

How to free download Avast Secure online window on Windows/Mac/iOS/Android?

This post provides a full guide for you to do that.

The End

Now, this post comes to the end.

if you stumble on the same issue, you’re free to try the methods above.