msiexec.exe is a legitimate file and is an important component of Windows Installer. It is used for installing new programs in PCs with Windows operating system. It is typically located in c:\windows\system32\msiexec.exe.
 

Malware programmers write virus programs and create fake file names mimicking msiexec.exe to  spread virus on the internet.

 

 

 

If you notice your PC suffering in speed and performance, take the following steps to check against a possible virus attack:

 

Step 1: Simultaneously press CTRL+ALT+DEL keys to open Task Manager.

 

Step 2: If the file is located outside its designated path in c:\windows\system32\msiexec.exe, or if you notice msiexec.exe taking too much CPU usage, you should run an antivirus scan to get ride of the malware.

 

 

Step 1: Download the award-winning Comodo Free Antivirus.

 

Step 2: Installation configuration frames will be displayed. Select the configuration you would like to apply.

 

Step 3: Select Customize Configuration option and arrange installers, configuration, and file location.

 

Step 4: Restart your PC.

 

Step 5: It will take some time for the Comodo Internet Security to update the antivirus.

 

Step 6: Proceed with a quick scan that automatically begins after the update.

 

Step 7: If threats are found during the scanning, you will be prompted with an alert screen.

 

Step 8: Comodo Antivirus will remove the msiexec.exe malware from your computer including all other malware!