Jump to content

Question about duration to complete scan

Recommended Posts

I am on Windows 7 netbook with 2GB memory. I am using Malwarebytes free, build date 3/10/2016. When I start Malwarebytes I am connected to the internet so I get the latest antivirus data. (Though prompted, I am not willing to update to the latest version of Malwarebytes; that is my choice.) It takes about 25 minutes to complete the scan. 

I recently downloaded and installed the latest Malwarebytes (free trial, plan to revert to free, later) on a Windows 10 computer (originally Windows 7 and updated to Windows 10) with 8 GB of memory. When I run Malwarebytes, it takes about 27 seconds to complete the scan.

My question is, why does it take 25 minutes to complete the scan on one computer, and 27 seconds on the other computer? 

Link to post
Share on other sites

  • 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

Link to post
Share on other sites


There are several possible reasons for the differences in your scan times.  First, version 2.x is very old and is no longer supported at all and much has changed in the product since then.  Next, the difference in the amount of RAM, especially when you drop below 4~6GB is going to make a massive difference.  Additionally, differences in the two operating systems and how they function as well as differences in the programs and processes installed on the two systems will make a difference, and particularly since the one system is much newer than the other, it likely has built up far fewer files and processes which need to be scanned.  Other than that, differences between the hardware such as the speed and type of CPU and its capabilities as well as differences in the drives within the two systems as well as the chipsets/controllers they are attached to can all make big differences in scan times with newer equipment usually being faster due to advancements in computing technology over the past several years.

If you plan to continue using the older system I would highly recommend uninstalling version 2.x, restarting the system, then installing the latest version of Malwarebytes which may be found here; version 2.x is so out of date that it will be incapable of detecting many current threats since it lacks any of the advancements in the engine as well as changes/additions to the database detection syntax which have been implemented since then (older versions of Malwarebytes are coded to ignore any threat signatures they do not understand in order to avoid breaking the product and encountering unforeseen issues such as false positives due to errors that not doing so might cause).  Please also make certain that Windows and your other applications are all up to date in order to avoid falling prey to any of the no doubt countless vulnerabilities which exist in much older versions of the OS and the software installed on the system.

Anyway, I hope that helps to clarify the factors which are likely resulting in the differences in scan times you're seeing, and if there is anything else we might help you with please let us know.


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
Back to top
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.