Malwarebytes
Also called malwarebytes antivirus, mbam, malwarebytes premium
An on-demand malware scanner with a paid realtime layer. The service is MBAMService.exe. It is not Windows Security and not AdwCleaner.
What you need to know
Malwarebytes is a second-opinion scanner. Premium realtime is a different mode.
The free app scans when you ask. Premium keeps MBAMService.exe resident and should take the antivirus slot from Windows Security. Running that realtime layer next to a still-live Defender engine is the usual conflict. AdwCleaner is a separate cleaner.
- What is it?
- On-demand scanner. Premium adds realtime
- Instead of Defender?
- Free can sit beside it. Premium should take the slot
- Same as AdwCleaner?
- No. Different Malwarebytes tool
What is Malwarebytes?
Malwarebytes is a consumer scanner. Free mode is on-demand. Premium registers as a realtime antivirus. The Windows service is MBAMService.exe.
If you have never used it
If you already have Windows Security and still want a second opinion scan, Malwarebytes is the product people add. Download it from malwarebytes.com/mwb-download. The free build is an on-demand scanner. Premium turns on realtime and MBAMService.exe stays resident. That paid layer plus a still-live Defender engine is the two-antivirus fight. AdwCleaner is a different Malwarebytes cleaner you run and close.
What is it used for?
Scan after a scare while Windows Security stays the resident engine. That is the free job.
Premium keeps MBAMService.exe watching files. Windows Security should then show Malwarebytes as the owner, not two live engines.
Browser and exploit shields are Premium modules. They are not AdwCleaner and not MsMpEng.exe.
Who is it for?
- People who want a second scan beside Defender, not a replacement yet
- Users who paid for Premium and now see MBAMService.exe at idle
- Anyone who mixed this installer with AdwCleaner and thought they were the same app
Current status
Actively developed as Malwarebytes Desktop Security. This article is the consumer Windows app, not ThreatDown endpoint.
How old is it?
Malwarebytes grew from a 2000s on-demand cleaner into a Premium suite. Current Desktop Security is the Windows 10 and 11 app. It is not Microsoft Defender from 2006, and it is not the old MBAM 1.x portable you copied from a USB.
Versions
Major channels first. Exact build numbers are not all verified here.
System requirements
Values follow the publisher's public guidance. Workload still changes the real need.
Minimum
| Operating system | Windows 10 or Windows 11, per Malwarebytes Desktop Security |
|---|---|
| RAM | Malwarebytes help lists at least 4 GB, preferably 8 GB |
Resource profile
- CPU demand
- Spikes during a scan. Premium adds idle cost
- Disk demand
- Full scans walk the drive
Installed processes
These executables belong to this product when it is installed.
| MBAMService.exe | Malwarebytes service and protection engine |
|---|---|
| Malwarebytes.exe | Desktop window |
Startup components
Premium starts MBAMService.exe with Windows. The free scanner should not need a persistent service after you close the window.
File locations
| Typical install | C:\Program Files\Malwarebytes\Anti-Malware\ |
|---|
Common problems
Premium plus live Defender
Two realtime engines can lock the same file. Windows Security should name Malwarebytes after Premium registers. If MsMpEng.exe is still the owner, the slot never switched.
People treat AdwCleaner as the full suite
AdwCleaner is a PUP cleaner you run and close. It does not replace MBAMService.exe.
Getting unstuck
See who owns Virus and threat protection
Start > Windows Security. If you paid for Premium, Malwarebytes should be listed. If Defender is still active, the two engines can fight.
Confirm Program Files\Malwarebytes
MBAMService.exe belongs under Malwarebytes. A similarly named exe in Downloads is not the vendor build.
Use AdwCleaner only for a one-shot PUP pass
That tool is not a resident antivirus. Install the full Malwarebytes app if you wanted ongoing scans.
Alternatives
Windows Security is already on the PC. HitmanPro is another on-demand second opinion. Two paid realtime suites at once is the mistake.
Official help and downloads
Start with the vendor. Random exe sites are not a support channel.
| Download | www.malwarebytes.com/mwb-download Official installer or vendor page |
|---|---|
| Help | support.malwarebytes.com/ Vendor support |
| Official site | www.malwarebytes.com/ Start here, not a random exe host |
| Desktop requirements | help.malwarebytes.com/hc/en-us/articles/31589243089307-System-Requirements-for-Desktop-Security What Malwarebytes lists for current Windows |
Related hardware
A full scan is disk-heavy. An HDD makes MBAMService.exe look worse than the same scan on an SSD.
Technical details
Technical details
Vendor version numbers change. This article does not pin a build.
Sources and verification
Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.
- Malwarebytes official site · Vendor product page
- Malwarebytes help · Vendor support
- Malwarebytes Desktop Security requirements · Windows 10 and 11 listing
- Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.
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