This is the Windows 10, 64-bit driver for the Realtek Audio driver in the Vostro 5450. You can download the driver below. Note however that this is a 64bit driver only and has been used on a number of computers brought to market by Dell. This is the same driver for the Inspiron 3043 computer which also uses the same hardware as the Dell Inspiron 3043 computer. You can download the driver below for the Realtek audio hardware.
Vostro 5450 : Realtek High Definition Audio Driver
The driver is version 126.96.36.19928, A03 which was last updated on the 13 Jan 2017. This is the latest driver of the hardware for the Vostro 5450. Download the driver file below in the zip file. You can use Winzip or 7Zip if you so desire. Its a large 300MB+ file so check your driver version first as well as your hardware before you download the file especially if you are concerned about your bandwidth usage. When you open the file there is an install file inside. Click on this and the driver will install or it will simply extract the files to your C:\ driver being your main hard drive. This will normally be extracted into a Dell directory which the software will create. You can check in there and install the driver from this directory. Its very easy and simple to do.
Version : 188.8.131.5228, A03