Applicable to the account that cannot be downloaded after logging in, and has no effect. Click the external link to log in invalid and users who have reinstalled the system.
Go to the official website to find the corresponding vsinstall installation version and click to download:
Thank you for downloading Visual Studio - Visual Studio (microsoft.com)
When you click here, try not to choose anything, just choose the installation path. The system will automatically select the required files. Click Modify and wait for the installation to complete. Re-open Vs on the line. I have two versions in use here, so I downloaded both versions of install. Just install it.
This almost solves the license issue. Because there is no link to the external network and the files after reinstallation are all lost. So use this install to complete these functions and licenses. etc. .