Whatsapp Desktop App Not Opening. Log out from all devices on whatsapp. Check for network issues on your smartphone.
It shows me the following screen. I was using whatsapp when my phone switched off because of low battery. Open google play store on your android phone or tablet and download the unseen app.
If you’re in windows 10, this link should open the microsoft site and the windows store app together.
Then for the android app, on the top right tap the 3 dots. You should also try logging in again into the whatsapp web. If after you have tried all suggested fixes above, whatsapp web qr code is still not working, try this: See screenshots, read the latest customer reviews, and compare ratings for whatsapp desktop.