How do I fix Malwarebyte's error code 1812?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The malwarebytes error code 1812 is a problem that can occur when trying to update the program. This can happen for a number of reasons, but typically it is because the files that need to be updated are in use by another program or process. As a result, the update process is unable to replace the existing files and the process fails. In some cases, this error can also occur if there are file permission issues that prevent the update from taking place.

1. Restart your computer and try running Malwarebytes again

To restart your computer, press the power button to turn it off and on again. Then, press the button to enter the BIOS (Basic Input/Output System) Setup. Under the Boot tab, press the F10 key to enter the BIOS setup. In the BIOS setup, press the Delete key to delete the current boot order. Press the F12 key to enter the boot menu. In the boot menu, press the c key to enter the command prompt. At the command prompt, type rstrui.exe and press the Enter key. In the Registry Editor, navigate to the following location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters In the Parameters subkey, create a new DWORD value named Restart and set its value to 1. Close the Registry Editor and reboot your computer. Type Malwarebytes in the command prompt and press the Enter key. When Malwarebytes starts, click on the Scan button to start the scan.

2. Update your version of Malwarebytes

  1. Launch Malwarebytes software
  2. Click on the "Update" button in Malwarebytes main window
  3. Select your operating system and click on the "Next" button
  4. Review the Malwarebytes update options and click on the "Update" button
  5. Malwarebytes will now update your software. This process may take a few minutes.
  6. When the update is complete, click on the "Close" button in the Malwarebytes main window

3. Try running Malwarebytes in Safe Mode

  1. Boot your computer into Safe Mode with Networking. To do this, turn off your computer and then turn it on again. At the BIOS or startup screen, press theDelete key to enter the Advanced Startup Options menu. Select Safe Mode with Networking and press Enter. 2. After your computer starts in Safe Mode, open Malwarebytes and click on the Scan tab. 3. Under Scan Type, choose to Scan for malware and select the infected files or folders that you want to scan. 4. Click on the Scan button to start the scan. 5. When the scan is complete, click on the Fix Threats button to remove the detected malware. 6. When the Fix Threats process is finished, close Malwarebytes and turn off your computer.

4. Temporarily disable your antivirus program and try running Malwarebytes again

  1. Open Malwarebytes and click on the "Scan" button.
  2. When the Malwarebytes scan is complete, click on the "Fix" button.
  3. Follow the prompts to disable your antivirus program.
  4. Click on the "Scan" button again to verify that the malware has been removed.

Still not working? maybe try one of these options:

  1. Uninstall and reinstall Malwarebytes.
  2. Contact Malwarebytes support for further assistance.