Here is a basic guide. However your subnet mask and default gateway will determine what numbers in your LAN address you can change, I would need to know your subnet mask and default gateway to give you a range of usable private IP addresses.
You will also want to exclude the IP's you set manually from being used by DHCP, otherwise it may give out those IP's to other devices and you will get IP conflicts. Or turn off DHCP but that would mean you have to set up a static IP for every device that uses your network.
https://kb.netgear.com/27476/How-to-set-a-static-IP-address-in-Windows