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Malwarebytes Freezes on Custom Scan

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I am using Malwarebytes  When doing a threat scan it will work fine an usually find 0 Threats Identified.

However when I do a custom scan say of the C drive it will freeze on a file such as "C:\WINDOWS\INSTALLER\{90140000-0011-0000-1000-000000OFFICE}\PUBS.EXE" or

some other file.  I would like to be able to do a complete scan without it freezing.

Thank You





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  • Staff

***This is an automated reply***


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I didn't see anything that stood out in your logs other than a few errors for Malwarebytes and Windows Defender, most of which appeared to be related to issues completing scans.  It is possible that there is some kind of file or disk sector corruption causing the problems which may be fixed using the chkdsk utility.

First, I would suggest backing up any important files and data on the drive before continuing just in case this is the result of a failing drive or in case something goes wrong during the repair process resulting in loss of data.  While it isn't likely, it's still best to be on the safe side when dealing with any potential disk issues to safeguard your data and files.

Next, I would suggest running chkdsk.  You can find instructions on how to do so here.  Once that's done, please try your custom scan again and see if it is able to complete or not.

Please let us know how it goes and if you have any other questions or problems.


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OK, sounds good, just please remember what I said about backing up your data first because even though chkdsk may fix the issue, it could also result in lost data if any of your files are in bad sectors and can't be recovered, and if what's going on is being caused by a failing drive then all of your data could be at risk.  I'm not trying to scare you or anything, I'd just hate for you to end up losing any important files if it turns out that the drive is failing.

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If that doesn't help, please do the following:

  1. Download and extract Procdump.zip
  2. Start a scan that causes Malwarebytes to hang
  3. Once the scan is hung, right click on 5 - mbamservice_memory.bat in the extracted folder from step 1
  4. Choose Run as Administrator
  5. This will popup a black screen that should go away in a bit
  6. Once the screen goes away, you should have a new .dmp file in the same folder from step 1
  7. Right click the .dmp file and choose Send to -> Compressed (Zipped) Folder
  8. This will create a new .zip file in that same folder
  9. Goto wetransfer.com and upload the zip file
  10. Click the three dots at the bottom of the webpage to change the email to a download link
  11. Paste the download link in your reply

This should give us a better idea of why the scan is hanging.

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Hello dcollins:

Thank you for your reply.  I downloaded the program and rank the scan.

It froze and I right clicked on # 5 from the folder in step # 1.

However no option comes up to let me run it as an administrator when I do this.

Any ideas on how I can bring that option up?

Thank You

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Please make sure that you actually extracted the files, if you just double-click on the folder you downloaded in step 1 to open it and then tried right-clicking the file from there it won't work and won't present you with that option.  To extract the files right-click on the ZIP folder you downloaded in step 1 and select Extract all and have Windows extract the files to their own folder and leave the default option selected to have it show the extracted files when done, then once it opens after extracting, follow the rest of the instructions from dcollins above.

If that still does not work please let us know.


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  • 2 months later...

Thanks for the information. Please do the following:

Ky7CZ60.png Enable Malwarebytes Debug Logging

  • Open Malwarebytes.
  • Click the Settings menu.
  • Ensure the Application tab is selected.
  • Scroll down to Event Log Data.
  • Turn the Collect enhanced event log data for support setting ab4jSL6.png On.

MgeHyNE.png Generate MBAMService Memory Dump

  • Please download run_procdump.bat using the link below.
  • Once done, please do the following:
    • Reproduce the Malwarebytes scan hanging.
  • Open your Downloads folder.
  • Double-click CX41PDv.png run_procdump.bat. Click Yes if prompted by AVOiBNU.jpg User Account Control.
  • A blue window will appear.
  • Upon completion, a file named memorydump.7z will be saved to your Desktop. Please attach the file in your next reply.
  • Note: If the file is too large, you will be provided instructions to upload the file to a file hosting website (wetransfer.com).

YbWgqUx.png Malwarebytes Support Tool (MBST)

  • Please download MBST using the link below:
  • Once the file is downloaded, open your Downloads folder or the location of the downloaded file.
  • Double-click YbWgqUx.png mb-support-#.#.#.###.exe to run the program.
  • If prompted, place a checkmark next to Accept License Agreement and click Next.
  • Click the Advanced menu on the left. Please do not click Start Repair.
  • Click Gather Logs.
  • Upon completion, click OK.
  • A file named HSPwQfy.png mbst-grab-results.zip will be saved to your Desktop.
  • Please attach the file in your next email reply.
Edited by LiquidTension
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Thank you for the files. We are looking into the cause of the issue and will provide an update shortly.

In the meantime, can you try running the same scan in Safe Mode and let us know if the issue still occurs.

Also - how are you configuring the custom scan? Please provide a screenshot of the scan options you select.

Edited by LiquidTension
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