Avast Free Antivirus, Avast Pro Antivirus and Avast Internet Security create log files that contain results from each scan performed on your computer. While these files serve as important references, you risk losing hard drive space due to the multitude of scan logs that these applications create over time. Fortunately, all three Avast applications provide built-in options that you can use for either manual or automatic deletion of old scan logs, thus allowing you to free up hard drive space for your business-related applications.
Manual Deletion
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Step 1
Press "Windows-Q," type "Avast" (without quotes) and select the Avast application that you want to delete the scan logs from.
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Step 2
Select the "Maintenance" tab and click the "Scan Logs" side tab.
Step 3
Select a scan log from the "Completed Scans" section, using the "Date" field as a reference to determine how old each scan log is.
Step 4
Click "Delete Log" to remove the selected scan log from your computer.
Automatic Deletion
Step 1
Press "Windows-Q" to open the Search charm, enter "Avast" (without quotes) into the search box and select the Avast application that you want to delete the scan logs from.
Step 2
Click the "Settings" option on the upper right-side of the Avast Free Antivirus, Avast Pro Antivirus or Avast Internet Security window.
Step 3
Click the "Maintenance" side tab.
Step 4
Check the box next to "Delete scan logs older than."
Step 5
Enter the amount of the days that you want to keep Avast scan logs into the vacant field next to "Delete scan logs older than."
Step 6
Click "OK" to configure Avast to delete old scan logs after the amount of days specified.