Hey guys follow these links:
1st Link (86Box): https://github.com/86Box/86Box
2nd Link (86Box Manager): https://github.com/86Box/86BoxManager
3rd Link (Roms): https://github.com/86Box/roms
Now after following the process:
4th link (NPCAP Driver): https://npcap.com/#download
So these are the links for 86Box installation.
Hope this video helps :)