We’ve reviewed about Malwarebytes 4 when the first beta was released, we’re unable to uninstall the latest beta version (stable version not yet launched) as it got stuck, we’ve to use Malwarebytes Support Tool to remove the product.

A new beta for next Malwarebytes 4 is up for grabs. After testing the product, when we tried to uninstall it, the process stopped at one point and not progressed further. Considering MB 4 is in beta, you should expect these issues to arise, but the Malwarebytes Support Tool will be a great help in situations like this, it removes all products of Malwarebytes and saves premium key to desktop and asks whether to reinstall Malwarebytes again.
You should be using the Malwarebytes Support Tool for troubleshooting issues with popular anti-malware on Windows but not old Malwarebytes Cleanup or removal tool. The former developed with Premium users in mind, but helpful for free version also when the trouble arises.
How to use Malwarebytes Support Tool to remove Malwarebytes Anti-malware
1. If you’ve issues in uninstalling the current stable or beta version of Malwarebytes, download and save Malwarebytes Support Tool to your computer.
2. Run it, the Support tool with UI similar to Malwarebytes offers an option “Start Repair” in the main window to fix Malwarebytes running issues, if you’ve any.
3. You don’t need to run that here, click on Advanced and click “Clean”, this step “removes all Malwarebytes products from your machine and backup your premium license key to the desktop”

4. Malwarebytes Cleanup built into Support tool asks for your confirmation to proceed, it also informs, later, you’ll be asked to “reinstall the latest version of Malwarebytes for Windows “, click “Yes” and wait for MST to completely remove Malwarebytes, the system will be restarted to complete the process.
5. Once you see your desktop after the restart, your system will be free of Malwarebytes, you can reinstall Malwarebytes if you want or close the prompt.