Remove install.php?

Do I have to remove install.php or any file after successful installation, for security reasons? Tnx

I would assume not.
Reason being, all the install.php does it add the tables to the database.
If the tables are already set, then it gives errors that they already exsist.

Go ahead and remove it, if you need it again, simply upload it via ftp through your own computer. Better yet, rename it.