How do I stop Google drive from uploading automatically?

How do I stop Google drive from uploading anytime I connect to the internet? The Google drive I install on my laptop has turned into a menace anytime I connect to the internet. It is always uploading files, even when there is no new file in the Google drive folder. I have tried all I could to the extent of removing all the file in the Google drive folder, yet it is still uploading.
