When you initiate the Task Manager, you could find the msiexec.exe process.
What is msiexec.exe file and is it a virus?
If you want to know the answers, then this post fromMiniToolis what you need.

What Is Msiexec.exe?
First of all, what is msiexec.exe file?
It is a software component of Microsoft Windows, which stands for Microsoft Installer Executable.
If the msiexec.exe process is terminated while installing a new tool, the process will fail completely.
Is Miexec.exe Safe?
So how to look to see if the msiexec.exe file is a virus?
you’re able to check its location.
Here is how to do that:
Step 1: Right-click theStartbutton to chooseTask Manager.
Step 2: Findmsiexec.exein theDetailstab, right-click it to chooseOpen file location.
Step 3: The msiexec.exe file should be located in theC:\Windows\System32folder.
If it is, then it is the genuine file.
Safe mode is an environment in which only necessary drivers and services are used to start Windows.
This environment temporarily prevents the malicious functions of the virus from running.
Related post:[SOLVED] Windows Safe Mode Not Working?
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Final Words
In conclusion, this post has given you a full introduction to the msiexec.exe file.