Windows 7: Removing padlock from folder icons (after disabling folder share)

Right click the folder and choose “properties”.
Click the “security” tab and then click “edit” and then click “add” and then click “advanced”
Click “object types” and then tick “groups” and then click “ok” and then click “find now”
Scroll to the bottom of the list and then highlight “Users” and then click “ok”. “ok”
Highlight “users” and tick the boxes for “read” and “write” (and any other permissions you want).
Click “ok” “ok”

Note: I found this here.