I have downloaded the SuiteCRM 7.12.5 Version through your link. It’s easily working.
But Issue is in database connectivity ( ! ) Fatal error: Uncaught Exception: Database error. Please check suitecrm.log for details. in C:\wamp64_1\www\ttt\SuiteCRM-7.12.5\include\utils.php on line *1934*
Database create successfully
I have not found manifest.php on Version SuiteCRM 7.12.5
And MyPHP version is 7.4