You might have them on a CD. Look through your CDs for ones labeled "drivers" or "drivers and utilities" or something like that. They probably aren't the most up to date, but they should work.
here's the dell site for drivers: http://www.dell.com/support/drivers/us/en/04/DriversHome/NeedProductSelection
select "choose from a list of all dell product"
click continue
click laptops
click inspiron
click inspiron 14 n4030 (half-way down the first list)
select your operating system from the drop down list