Hi Tushar
I am Dave, an Independent Advisor, I will help you with this . . .
In Windows 10, it is normal to have many, many versions of Scvhost (70+) running all the time, Windows 10 is multi-threaded and a lot of the processes in Windows are divided down into small processes so that can run on the different cores in the processor, and this actually keeps the system running fast, and does not slow your system
The processes you can control are as follows:
Turn off all unnecessary startup applications and processes:
Press Ctrl + Shift + Esc to open Task Manager
Click on the Startup Tab
See any non-essential items are listed there
If so, select and click 'Disable'
Close Task Manager
Click your Start Button, type msconfig and hit Enter
When the System Configuration dialog opens, click on the Services Tab
Check the box marked 'Hide Microsoft Services'
In the remaining list, see any non-essential items are listed there, uncheck any you find
Click Apply and OK
Turn off all unnecessary Background Apps
Open the Settings App
Go to Privacy - Background Apps
Turn off any App you do not need running in the background
Restart your PC