How to refresh the list of installed server components in Plesk?

For Linux OS:

1. Connect to the server via SSH

2. Run the following command:

   # plesk sbin packagemng -sdf

For Windows OS:

1. Connect to the server via RDP

2. Start a command prompt as Administrator

3. Run the following command:

   C:> plesk sbin defpackagemng.exe --update --fix