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Steven J. Marty

"An Error Occurred" Installing Using Offline Installer

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I attempted to upgrade from v3.8.3.2965 to v4.0.4.49 on two Windows 10 computers using the offline installer referenced and linked in this post.  On both systems, I got a nondescript error message stating only that "an error occurred" and offering nothing else but an "OK" button.  I uninstalled v3.8.3.2965, ran the "Clean" portion of the Malwarebytes System Tool, rebooted as instructed, etc. and attempted the installation again.  Same result again on both computers.

Would someone be able to test the offline installer linked in the above post to see if you get the same results?

Here is the link...



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I tried the same offline installer on a third system and got the same error message (attached).

If I download the installer stub and run that, the product installs correctly.  I attached the log file that's written to the C:\Windows\Temp folder when it fails to install via the offline installer.

I like to have a full copy of the software for offline installations.  I believe there is an issue of some sort with the file @Erix referenced in the aforementioned thread.

Can someone from Malwarebytes download that installer (http://downloads.malwarebytes.com/file/mb4_offline) and attempt to install it?



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14 hours ago, AdvancedSetup said:

Installed just fine for me. No issues encountered.

Do  you already have MB3 on these other systems?


Strange.  It appears that @Paszu is encounting the same problem with the offline installer.

Initially, v3.x was installed on the two systems and I ran the offline installer to upgrade to v4.x.  After getting the error message, I uninstalled v3.x, ran the "Clean" portion of the Malwarebytes Support Tool, and then attempted the installation again using the offline installer and got the same error message.

Can you let me know what specific logs you would like?

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I gathered the logs and looked through the resulting files and I'm not comfortable posting that information in a public forum.  I went ahead and opened a support ticket (2781480).

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@Steven J. Marty    The support tool report has no personal info.  Be aware that the Support team has a limited team on weekends.  It will likely take 2-3 business days before they can get around to your ticket.   Do have patience.

Edited by Maurice Naggar

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22 hours ago, Steven J. Marty said:

I went ahead and opened a support ticket (2781480).

As you now have a support ticket open I will go ahead and close your topic here so as not to waste limited resources or confuse instructions on addressing your issue.

Thank you


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