I wish to answer to shubham sen
You need to open Event Viewer in Control Panel then locate Windows Logs/System you must repair all red error messages what shows up by Event notification system they are not critical but if you do that than all your boot time must be fixed it`s usually Component Services Dcom Config security permissions otherwise PC will boot slowly and full of errors, like you need to change permissions before you do it in Dcom Config in Windows registry by yourself if you are using Windows.