%userprofile%\AppData\Roaming\Microsoft\Network\Connections\Pbk\
Step 2: You will see file "rasphone.pbk", which should be your file VPN Connections. Check it again to make sure there are your connections.
Step 3: If it's, you just copy it to backup location. After then, if you want to restore it in another computer or another user account. You only copy it to the same address in Step 1.
