Backup to network: Where to find the username and password?

Hi,

I want to save my laptop system image on a desktop on the homegroup network. I'm requested to insert a username and password, but can not figure out where I can find this information.

I have full access to both the laptop and desktop and I have not set any Windows usernames or passwords on them. On both the laptop and desktop there are two user accounts and neither uses a password. I have the homegroup password, but I cannot find a user name, hence I do not think it is this password that should be entered, and I'm not able to proceed... Where do I find this information?

Thank you!

Hi,

I never got any answer to this question, so I ask again. What username and password should I enter on the laptop?

Since last time I've created three user accounts on the desktop. One called Admin using a password, and two other accounts not using a password.