Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to deal with a man in the middle attack [title] To take the advantage of vpn, you should have a remote vpn server set up and configured first. [step] You can do it yourself or just employ some reliable vpn service. [title] Click " control panel " in the startup menu.

Ending1: [step] Under advanced options select " hardware & features ". [title] In the control panel dialog box, click on " hardware and features ". Ending2: [title] In control panel, select " network and internet ". [title] Click " network and sharing center ". Ending3: [step] Then click " options " and choose " set up ". [title] In the menu window, click " software options " and then click " troubleshoot'. Ending4: [step] This will bring up a virtual machine. [title] Browse through the " virtual machine " selection menu.

Answer format: ending1/ending2/ending3/ending4