How to Fix SysWOW64 msiexec.exe Virus

1. Open Command Prompt as Administrator.
2. Run this command: %windir%\system32\msiexec.exe /unregister
3. Run this command: %windir%\syswow64\msiexec.exe /unregister
4. Run this command: %windir%\system32\msiexec.exe /regserver
5. Run this command: %windir%\syswow64\msiexec.exe /regserver
6. Restart the computer.