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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Tom_798 on December 21, 2022, 04:00:55 PM

Title: USB Thumb Drive Scanning
Post by: Tom_798 on December 21, 2022, 04:00:55 PM
I need to take a full scan of my USB drive that I have a system image already installed on the drive. I have used a targeted scan and a custom scan & only takes about 5-seconds at most.  Scan history shows 5- files and 5-folders with 24.7-GiB tested.  I don't believe it tests all that in that length of time.  Is it accurate & is there any way to take a full scan?  I am using the Free Antivirus Version.
Title: Re: USB Thumb Drive Scanning
Post by: bob3160 on December 22, 2022, 01:05:57 AM
Make sur that in the setting you allow checking for compressed files.
Turn it off again after you finished doing your targeted scan.
Title: Re: USB Thumb Drive Scanning
Post by: Tom_798 on December 22, 2022, 02:15:55 AM
I cannot seem to find any setting for compressed files.  Would there be a chance you could look that up & tell me where I might find it?  I do appreciate the help.
Title: Re: USB Thumb Drive Scanning
Post by: alanb on December 23, 2022, 02:01:21 PM
Settings > Protections > Virus scans.
Scroll down to "Installers and archives".
Check "Scan all archives".

As Bob says,
Quote
Turn it off again after you finished doing your targeted scan.
Title: Re: USB Thumb Drive Scanning
Post by: Tom_798 on December 23, 2022, 08:50:25 PM
"Scan all archives" was already checked & shows it as recommended setting.  I tried turning it off, resetting priority and sensitivity and still scans in about 5-seconds.  I believe the thumb drive is okay & so what about if I do a quick format (erase) and then scan again?  I don't see how it can check about 24-GiB in 5-seconds.
Title: Re: USB Thumb Drive Scanning
Post by: Rundvleeskroket on December 23, 2022, 09:18:55 PM
You could enable 'scan whole files'.

5 seconds doesn't sound unrealistic if it is indeed just 5 files. Avast by default only scans the parts of the files most likely to be affected by viruses etc.