OS change of VPS: How to copy installed MT4 quick and safe?

Dear Experts,
my VPS-Server will do an update from Win 12 to win16 and i have to make a backup of all my installed MT4. How can i do this is a quick way?
Thanks for any help!

Pit

If you switch the OS of a VPS, you cannot just copy the installed folder in order to transfer MT4 safely. MT4 requires Windows registry entries, system libraries, and OS-specific components, which won't be accurately transferred after an OS reinstallation.