Article: "Manual" if you want to start it when you require or  "Automatic" to start it whenever computer boots on else  "Automatic delayed" if you want it to initiate a little bit later after the other services in your computer are started at boot time.   and you should see this line "IP Routing Enabled. . . . . . . . : Yes" which will be the third line. This means Routing has been enabled. You can disable by changing the startup type to disabled and check "ipconfig /all" to see the status. The services method was tried in Win 7 Ultimate Other versions may not have that service listed This also works on Windows Server 2012 R2 Datacenter
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Go to Run type "services.msc" without quotes  Search the service "Routing and Remote Access", it will be disable by default. To enable it right click on it and then select properties and change the "Startup Type" to  Now apply and press ok  Now right click the Routing and Remote access service and press start and let the progress bar complete. Now go to run and type "cmd" to get command prompt and type "ipconfig /all". Note: