How to increase log rotation period for IIS logs in Plesk on Windows server?

To increase retention of IIS logs, perform the following steps:

1. Connect to the server via RDP

2. Open Command Prompt as Administrator and execute the following command:

   REG ADD "HKLM\SOFTWARE\Wow6432Node\PLESK\PSA Config\Config" /v log_pleskwebsite_history /t REG_DWORD /d 42 /f

   In the command above, replace 42 with the value in days the logs should be kept.