The legitimate installation file from WhatsApp is entirely safe and contains no malware. However, cybercriminals often disguise malicious software under common names like "WhatsAppSetup.exe" on third-party websites.
If you haven't used the Windows 10 app recently, it has received major updates to bring it to the "top" of messaging clients.
Receive message alerts directly in the Windows 10 Action Center.
Do you need instructions for on one PC?