Granpda 10.10.10.14

Hi, just subscribed to VIP to do some more Windows machines. I did Blue with and without Metasploit, then Grandpa with Metasploit. I can see that Grandma had a way to upload a webshell, but Grandpa seems more restrictive and I’m not sure how that can be done. Anyone willing to help me quickly in exploiting Grandpa without Metasploit (initial shell with Network Service privileges and possibly PrivEsc? @ippsec or @Agent22.
Let me know if you are willing to help me on this
Thanks in advance