Be careful to do not remove data directory and Neo4j database directory if you want to save your data! See Win: Important directories
Steps to uninstall Graphlytic:
Stop Graphlytic. See WinS: 5. Stop Graphlytic
Check where is your data directory. (see "main.dataDir" in file graphlytic.conf).
Go to Graphlytic home directory and remove this directory to remove Graphlytic from Windows