Hi,
See :
Install a new release of WampserverIt is not exactly for updating system, but the method is the same.
Backup your databases.
The one and only way to backup databases is to export into SQL file.
As you change System, may be you should also install last version of Wampserver :
Wampserver 3.0.0And, to avoid problems and dysfunctions, especially with Wordpress or Joomla (But these are not the only ones), they should be used VirtualHost:
The need for Virtual Host---------------------------------------------------------------
Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addonsEdited 1 time(s). Last edit at 11/29/2015 06:03PM by Otomatic.