Your dad just purchased a new desktop with Windows 8 Professional. He is calling you, informing you that he is unable to remote into his new computer from the hotel he is at. What is the most likely reason for this?

a) The Professional edition of Windows 8 does not support RDP.

b) He is trying to remote in from a computer running Windows 7.

c) He hasn't enabled Remote Desktop on his Windows 8 computer.

d) Remote Desktop only works through a local network.

You'll need to depend on your text for this. The current Windows version most people are using, it seems, is Windows 10.

The most likely reason for your dad being unable to remote into his new desktop from the hotel is option c) He hasn't enabled Remote Desktop on his Windows 8 computer.

To enable Remote Desktop on a Windows 8 Professional computer, he needs to follow these steps:

1. Open the Control Panel by pressing the Windows key + X, then clicking on Control Panel.

2. In the Control Panel, click on the "System and Security" category.

3. Under the System and Security category, click on the "Allow remote access" link under the System section.

4. In the System Properties window that opens, ensure that the "Remote" tab is selected.

5. Under the "Remote Desktop" section, check the box that says "Allow remote connections to this computer" and click the "Apply" button.

6. If prompted, he may need to adjust any necessary firewall settings to allow Remote Desktop connections.

Once these steps have been completed, your dad should be able to remote into his Windows 8 Professional desktop from the hotel or any other remote location.