HYPER-V

Approach (i):- Today i found the answer that use the option stop service and restart your system it will work.

if approach(i) not working then use this ,

Approach (ii):-

1. Click winkey + r open a run command , in that type optionalfeatures then search for HYPER-V folder see whether it is tick or not , if yes then do untick and click apply below the open tab. 2)After that restart your system. then again option the run command and type optionalfeatures and press enter , now see untick before HYPER-V and again press Tick and click apply button. and after that reboot or restart your system.
2. now search HYPER-V in search box next to windows logo, open the HYPER-V manager and see the stop service option and click on stop and start it again. 4)After finished this steps again reboot your system it will eventually work to most of the machines.