Hi,
In the link I gave you, there is explanation that there is only three things to remove to uninstall Wampserver.
The two services.
The content of the install folder and the folder itself.
To suppress the two services if it cannot be done by the Wampmanager Icon, run a windows line command as administrator then, in this Commande Windows type the two command.
SC DELETE wampapache
SC DELETE wampmysqld
Then delete the install folder of Wampserver.
Warning : In the link I gave you, it is explained that if you delete the Wamp folder you will
LOST your local sites AND your databases.
The link I gave you explain how you can change or replace Wampserver without losing your local websites or your databases.
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Documentation Apache -
Documentation PHP -
Documentation MySQL -
Wampserver install files & addons