mbamservice.exe running during Windows Update

[cmih]

I was watching Windows Task Manager while installing a Windows Update (Visual Studio service pack 1) and notice that a percentage of CPU was almost constantly being used by mbamservice.exe, sometimes up to 40%. Why does mbamservice need to run so much during a Windows Update?

[exile360]

Greetings

Any time a new process executes, Malwarebytes Anti-Malware's realtime protection (mbamservice) will scan it. This uses some CPU and RAM when this occurs. Installing Windows Updates starts many new processes, such as the update installer itself (usually an MSI package) as well as any other required processes/services so this behavior is quite normal.