Mcshield.exe - what is it?

As a Windows user, you will encounter the mcshield.exe process again and again. In this practical tip we explain what it is and whether the file is really secure.

Process: mcshield.exe belongs to McAfee

• The full name of the mcshield.exe process is "NT On-Access Scanner service". The process belongs to the McAfee On-Access Scanner.
• The security tool automatically monitors your processes, files and registrations. As soon as malware tries to sneak in, you will be alerted.
• In this way, mcshield.exe ensures that your PC is not infected by viruses or spyware.
• mcshield.exe is located in the Programs folder and is generally safe. If the process is in your Windows folder, it could be a virus.
• To determine the location of the file, open the Task Manager with the keys [Ctrl] + [Alt] + [Del]. Click on the "Processes" tab in the manager and right-click on the "mcshield.exe" entry.
• Select "Properties". The file path of the process appears under "Location:".
• If mcshield.exe does not appear in the programs folder, you should protect your PC with an anti-virus program like "Avast" and a malware fighter like "Spybot Search & Destroy".

Problem case: mcshield.exe brakes the computer

The mcshield.exe security process can cause problems on some computers. This means that your CPU is constantly busy even in normal operation.

• This could be because McAfee checks certain processes in the background. The more complex the scan, the higher the system load.
• When you end the process, your PC is no longer protected against viruses and spyware by McAfee.
• Therefore, switch to the many virus protection alternatives or end some background processes until the CPU utilization decreases again.
• If you switch off the right programs, the process will run normally again.

If you want to remove the process, you must uninstall McAfee Security Center.