Did you set up any local account on that PC? If your PC is connected to domain, is there a way that you would be able to reset the local admin password or create a new local admin account?
Can you provide the steps they are taking and the type of account they have? There are known compatibility issues with GoDaddy and I wonder if your issue might be related since you cannot use an account that's set up at Godaddy to log into a Windows 10 machine.
If you would like to send me an email at AzCommunity@microsoft.com and include your subscription ID, I can open a support ticket for you to help you troubleshoot further.