06-23-2016 10:52 PM
Hi ravi609 ,
Welcome to the Community Forums.
You can download all needed drivers from the support website using the device manager as reference as soon as you install things back . Choose your appropriate operating system and start with the Chipset driver , then display , then network (both ethernet and wireless) audio then proceed on the others with no specific order . Restart may be neccessary for each driver to ensure it is properly synched on your laptop.
Update us how things go .