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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Rescue Disc => Topic started by: malhonen on April 19, 2020, 02:48:53 AM

Title: Rescue disk doesn't run because of missing aswShell.exe
Post by: malhonen on April 19, 2020, 02:48:53 AM
I created a USB rescue disk last night through the Avast Free Antivirus interface by clicking on Create on USB. Downloading the files took forever on my extremely slow mobile connection but eventually showed success. However, when I tried to boot up an infected computer using the disk, the program barely started and said "Unable to launch main Avast Rescue Disk Shell, aswShell.exe!". I tried using the same USB drive on another computer with the same result, then used another USB drive and still with the same result. Browsing through the forums, I see that somebody else had already reported the same problem on April 12 but writing in French on an English-language forum (https://forum.avast.com/index.php?topic=189688.msg1542516#msg1542516 (https://forum.avast.com/index.php?topic=189688.msg1542516#msg1542516)), so his message might have gone unnoticed.

I'm using Avast Free Antivirus 20.2.2401, version 20.2.5130.570, on 64-bit Windows 8.1, with the latest virus definitions (200418-0). My user interface and system language is French if it makes any difference. The rescue disk's error message was in English in any case.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: bob3160 on April 19, 2020, 04:13:21 PM
Reported to Avast. Let's see if that helps.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: bob3160 on April 20, 2020, 03:01:03 PM
This is the rply I received from Avast,
"Fix will be in 20.3"
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: malhonen on April 21, 2020, 07:42:33 PM
Thanks for the help!
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: bob3160 on April 21, 2020, 07:43:33 PM
Thanks for the help!
You're welcome.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rocksteady on April 25, 2020, 12:07:48 PM
This is the rply I received from Avast,
"Fix will be in 20.3"
If fix is promised in v20.3, is it in the 20.3 Beta?
If it is, has it been tested to be working properly by the Beta testers yet?
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: Craig184 on April 25, 2020, 10:21:35 PM
I have a broken computer. I need this asap.  :'( :'(
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rocksteady on April 27, 2020, 07:04:49 PM
Current fix in Beta testing:
https://forum.avast.com/index.php?topic=233653.msg1544301#msg1544301
 
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rocksteady on May 04, 2020, 04:44:44 PM
Supposed to be fixed in this new 20.3 version:
https://forum.avast.com/index.php?topic=233940.0
Note I found USB creation hung a few mins at 86%, but it did finish eventually.
I have not yet been able to boot the Rescue Disk USB created from this version.

Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rmwhitworth on June 21, 2020, 01:18:27 AM
I just tried with 20.4.2410 (build 20.4.5312.577) which still has this problem.  Note that this problem dates back to at least 2016.  It would seem that they simply don't care.  The Avira boot disk is the only one that I have found thus far that will work from a Ventoy boot drive.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: bob3160 on June 21, 2020, 01:21:24 AM
I just tried with 20.4.2410 (build 20.4.5312.577) which still has this problem.  Note that this problem dates back to at least 2016.  It would seem that they simply don't care.  The Avira boot disk is the only one that I have found thus far that will work from a Ventoy boot drive.
Try the latest beta.
https://forum.avast.com/index.php?topic=234896.msg1550298#msg1550298


Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: petr.kolacek on June 22, 2020, 12:48:56 PM
I just tried with 20.4.2410 (build 20.4.5312.577) which still has this problem.  Note that this problem dates back to at least 2016.  It would seem that they simply don't care.  The Avira boot disk is the only one that I have found thus far that will work from a Ventoy boot drive.

Hi rmwhitworth, as bob mentioned in previous comment, please try latest BETA 20.5 where the major issues with RCD were fixed and let us know the result. Thank you!
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rmwhitworth on June 22, 2020, 06:43:21 PM
I tried Beta 20.5 and it does what my laptop does - creates a totally non-bootable USB.  There is no UEFI boot option only Legacy.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: rmwhitworth on June 22, 2020, 08:38:08 PM
Just for grins I made a Rescue DVD.  This actually boots but doesn't seem to be able to do anything.  It could not update and it would not scan the SSD.  It just says that the 'Scan has failed'.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: petr.kolacek on June 23, 2020, 08:58:13 AM
I tried Beta 20.5 and it does what my laptop does - creates a totally non-bootable USB.  There is no UEFI boot option only Legacy.

Hi rmwhitworth, thank you for the information. The Rescue CD should be created as legacy as well as UEFI - we will doublecheck and get back to you.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: petr.kolacek on June 23, 2020, 09:00:11 AM
Just for grins I made a Rescue DVD.  This actually boots but doesn't seem to be able to do anything.  It could not update and it would not scan the SSD.  It just says that the 'Scan has failed'.

Will also doublecheck this issue, thank you for your report.
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: petr.kolacek on June 23, 2020, 09:46:49 AM
Just for grins I made a Rescue DVD.  This actually boots but doesn't seem to be able to do anything.  It could not update and it would not scan the SSD.  It just says that the 'Scan has failed'.

Will also doublecheck this issue, thank you for your report.

Just prepared rescue disk via ISO burned to CD and it works great on my machine - I mean VPS (virus definition update) as well as execution of the scan seems to be just fine. Please note that for updating it must be connected to the internet via cable (wifi is not supported at the moment, but will be in the future). In terms of of the update as well as the scan problems, is there any other error message other then what you already mentioned? Especially for the update - any error code?

Also, could you please look at the hard drive(s) for the AvastPE.log file? This can help us to find out where the problem is. I assume there will be some problem with accessing the hard drive itself for scanning. Could you also try to run scandisk for the drive and try again if it helps?

Thank you for your cooperation, highly appreciated!
Title: Re: Rescue disk doesn't run because of missing aswShell.exe
Post by: petr.kolacek on June 23, 2020, 01:50:53 PM
I tried Beta 20.5 and it does what my laptop does - creates a totally non-bootable USB.  There is no UEFI boot option only Legacy.

Hi rmwhitworth, thank you for the information. The Rescue CD should be created as legacy as well as UEFI - we will doublecheck and get back to you.

Let me inform you that we induced the issue with booting with active UEFI and the problem will be fixed in 20.5 release (ETA: June 2020). Thank you for your cooperation.