Cara pertama Tutorial Cara Blokir port 139/445 dan 3389

Cara pertama Tutorial Cara Blokir port 139/445 dan 3389 :
buka windows firewall atau windows run cmd : (ketik “wf.msc” , tanpa tanda petik)
Pilih advance setting
Inbound rules -> pilih New Rules
Pilih Port -> next
Pilih tcp dan isi port 139,445,3389 -> next
Centang public,home,private -> next
Name (isi terserah contoh : Block Wannacry) -> next

Atau Cara Kedua untuk melakukan Block port via windows firewall:
Navigate to Control Panel, System and Security and Windows Firewall.
Select Advanced settings and highlight Inbound Rules in the left pane.
Right click Inbound Rules and select New Rule.
Add the port you need to open and click Next.
Add the protocol (TCP or UDP) Port 139 and Port 445 and port 3389 (optional) the port number into the next window and click Next.
Select Block the connection in the next window and hit Next.
Select the network type as you see fit and click Next.
Name the rule something meaningful and click Finish.