I assume you mean that you did ...
Install new windows.
Install WampServer on new windows
Copy my old \wamp\www folder to the new install
Copy the subfolders in \wamp\bin\mysql\mysql{version}\data to the new install
If this is correct, then dont forget to copy the contents of \wamp\bin\mysql\mysql{version}\data as well. If you are using INNODB database the actual data lives in the ibdata1 file in that folder.
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-