Ok listen up mate,
Here is the tips for restoring nc launcher problem:
1st : main priority >> go windows 10 home originals
2nd : disable all micosoft services > go run > type : msconfig and disable all
3rd : contact your services provider and ask them change new modem for all .
4th : change your cable to CAT 7 erthenet cable
5th : using a cooling pad blows your modem for 24 hours or more and good cooling sytem for your CPU as well ( panasonic fan would be great )
here is all the stuffs i did and now it worked perfectly fine without disconnecting and lagging issue