Malwarebytes error code 20025 typically shows up during a scan or update and points to a database update failure or a conflict with another running program, rather than a serious problem with your computer.
Steps to Fix It
- Check your internet connection — Malwarebytes needs to reach its servers to download the latest threat database.
- Close other security software temporarily, including other antivirus programs or firewalls, which can conflict with Malwarebytes during scans or updates.
- Restart your computer, then try updating Malwarebytes again before running another scan.
- Update Malwarebytes manually from within the app (Settings > General > Check for updates) rather than waiting for an automatic update.
- Reinstall Malwarebytes using the latest installer from Malwarebytes’ official site if the error persists after the steps above — uninstall completely first, restart, then install fresh.
If Nothing Above Works
Malwarebytes offers official support through their support site, including guided troubleshooting for persistent error codes — that’s the reliable path if the steps above don’t clear it up.
Related: See McAfee Mac error code 1 and Panda Antivirus error code 10.
nnFAQ
Is Malwarebytes error 20025 serious?
No, it usually points to a database update failure or software conflict, not a serious system problem.
Should I reinstall Malwarebytes right away?
Try updating and restarting first; reinstall only if the error persists after those steps.