Problems starting IIS

IIS w3svc error
Problem Statement:
I am trying to start my website in IIS, whenever i try to start my website i get the following error
"Cannot start service w3svc on computer"

I tried to start "World wide web publishing service", but i wasnt able to start it as it said "Error 1068: The dependency service or group failed to start".

Meanwhile when i checked my log i found this error,

"The World Wide Web Publishing Service service depends on the HTTP service which failed to start because of the following error: The service cannot be started, either because it is disabled or because it has no enabled devices associated with it."
Please help me, i am badly caught with this error, i hhave spent a week researching this error but havnt found a solution yet.

Solution:
Well finally after a week struggle, i came to a solution. I am listing down the steps which i followed to solve my error

1- Confirm that "Windows Management Instrumentation" is started and its start up type is set to automatic.

2- Also make sure the following dependency services are started for World Wide Web Publishing Service.

 Windows Process Activation Service, Remote Procedure Call (RPC), DCOM Server Process Launcher, RPC Endpoint Mapper.

3- Open regedit, navigate to [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP]:
         a) Double click on Start and change value data from 4(disabled) to 3(automatically).
         b) Delete "NoRun" key if this key exists

4- UN-install "Internet information Service" and "Windows process activation service(if it is already installed)" from "Turn windows feature on or off" and Restart your PC.

5- Type the below command in CMD and press enter
    net start http
    Now it will notify you that service is already running.

6- Re-install Internet information Service from "Turn windows feature on or off".

7- Start IIS and my websites are started now, no more "w3svc service is not running error."