Error when Installing Wine on Linux: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F

I was installing Wine on linux and up on following the guide instructions on this article, install wine, I came across these errors :-

• W: GPG error: https://dl.winehq.org/wine-builds/ubuntu xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F

• E: The repository 'https://dl.winehq.org/wine-builds/ubuntu xenial InRelease' is not signed.

I looked for solutions but I could not find one. I decided to create a post and my solution to this problem. Find the solution in the answers.

The solution is easy.

Add the required public key using the below command line:-

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 76F1A20FF987672F

Now you can run:-

sudo apt update && sudo apt upgrade -y

And you are sorted