package manager screen is blank

Whenever I try to open the package manager it shows a blank screen. I am using unity version 2019.4.16f1 personal.

Hi, I was facing the same issue today and reported it as a bug. I was told to update my Intel’s graphics driver to latest version to see if it fixes the issue. If that doesn’t fix the issue, try rolling back from your current version and check again

Updating driver worked in my case, and I hope resolves your case as well.

Open the project with the antivirus and firewall turned off, if doesn’t work reinstall the version of Unity with the antivirus and firewall turned off, it worked for me. @DeZCvr