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Malwarebytes undefined 4.30 - Can't activate license

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So a few days ago, I was desperate and tried to install a Cracked version of Malwarebytes Premium - but it did not work; it left me with the "undefined" version of Malwarebytes.

I decided to purchase a premium license after that but I could not activate the license key. I kept getting this error: "Unable to contact license server. Check your network settings or contact your system administrator for help." and "Installation_token Not Found"

I have tried: 

  • Resetting firewall rules
  • Downloading the support tool to perform a clean install
  • Uninstalling my VPN and then restarting
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  • Staff

***This is an automated reply***


Thanks for posting in the Malwarebytes for Windows Help forum.

If you are having technical issues with our Windows product, please do the following:

Malwarebytes Support Tool - Advanced Options

This feature is designed for the following reasons:

  • For use when you are on the forums and need to provide logs for assistance
  • For use when you don't need or want to create a ticket with Malwarebytes
  • For use when you want to perform local troubleshooting on your own

How to use the Advanced Options:

  1. Download Malwarebytes Support Tool
  2. Double-click mb-support-X.X.X.XXXX.exe to run the program
    • You may be prompted by User Account Control (UAC) to allow changes to be made to your computer. Click Yes to consent.
  3. Place a checkmark next to Accept License Agreement and click Next
  4. Navigate to the Advanced tab
  5. The Advanced menu page contains four categories:
    • Gather Logs: Collects troubleshooting information from the computer. As part of this process, Farbar Recovery Scan Tool (FRST) is run to perform a complete diagnosis. The information is saved to a file on the Desktop named mbst-grab-results.zip and can be added as an email attachment or uploaded to a forum post to assist with troubleshooting the issue at hand.
    • Clean: Performs an automated uninstallation of all Malwarebytes products installed to the computer and prompts to install the latest version of Malwarebytes for Windows afterwards. The Premium license key is backed up and reinstated. All user configurations and other data are removed. This process requires a reboot.
    •  Repair System: Includes various system-related repairs in case a Windows service is not functioning correctly that Malwarebytes for Windows is dependent on. It is not recommended to use any Repair System options unless instructed by a Malwarebytes Support agent.
    • Anonymously help the community by providing usage and threat statistics: Unchecking this option will prevent Malwarebytes Support Tool from sending anonymous telemetry data on usage of the program.
  6. To provide logs for review click the Gather Logs button
  7. Upon completion, click OK
  8. A file named mbst-grab-results.zip will be saved to your Desktop
  9. Please attach the file in your next reply.
  10. To uninstall all Malwarebytes Products, click the Clean button.
  11. Click the Yes button to proceed. 
  12. Save all your work and click OK when you are ready to reboot.
  13. After the reboot, you will have the option to re-install the latest version of Malwarebytes for Windows.
  14. Select Yes to install Malwarebytes.
  15. Malwarebytes for Windows will open once the installation completes successfully.













If you are having licensing issues, please do the following: 


For any of these issues:

  • Renewals
  • Refunds (including double billing)
  • Cancellations
  • Update Billing Info
  • Multiple Transactions
  • Consumer Purchases
  • Transaction Receipt

Please contact our support team at https://support.malwarebytes.com/hc/en-us/requests/new to get help

If you need help looking up your license details, please head here: Find my premium license key



Thanks in advance for your patience.

-The Malwarebytes Forum Team

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12 minutes ago, canadianruler said:

I was desperate and tried to install a Cracked version of Malwarebytes Premium

This is what got you. If you would have listened to Windows Defender you would have not had an issue.


Date: 2021-01-20 10:26:10.4520000Z
Microsoft Defender Antivirus has detected malware or other potentially unwanted software.
For more information please see the following:
Name: Trojan:Win32/Ymacco.AB2D
ID: 2147758023
Severity: Severe
Category: Trojan
Path: file:_C:\Users\Eli\Desktop\Malwarebytes Premium v4.2.0.82 + Fix (Lifetime Activation) {CracksHash}\Activator Fix\LicenseMalwareBytes.exe
Detection Origin: Local machine
Detection Type: Concrete
Detection Source: Real-Time Protection
Process Name: C:\Windows\explorer.exe
Security intelligence Version: AV: 1.329.2500.0, AS: 1.329.2500.0, NIS: 1.329.2500.0
Engine Version: AM: 1.1.17700.4, NIS: 1.1.17700.4


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Just now, canadianruler said:

Is there anything I could do? Or am I just stuck with malware from now on

Read my instructions again.

10 minutes ago, Porthos said:

I see what the problem is.  Please reset your Hosts file.

Instructions on resetting your HOSTS file can be found in this Microsoft support article.


Please let us know if the issue is resolved or not.



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  • Root Admin

Right, wrong or otherwise,  many cracks from years ago were often clean. Today there are few cracks that are clean. Many are simply trying to find ways to make your system a zombie or otherwise possibly encrypt your data making it impossible to recover without paying them.

Here are some tips to help protect your computer and privacy. Staying away from P2P and cracks of any kind would be highly advisable lest one day you end up with all your data lost.


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