Trying to set up new Windows 11, but it won't accept my email??

First of all, you need to make sure your computer is running Windows Pro edition, If it is Home edition, then you won't be able to add a work account.

If you have Pro, to do so, go to Settings > Accounts > Access Work or School, click on Connect.

Don't sign into your work email yet. Instead, click on "Join this device to Microsoft Entra ID". On the next step, you will be prompted to sign in, then you can sign in.

Once done, restart the computer and you can use "switch user" to sign in using the company email.

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However, since you are solopreneur, I strongly recommend against using your work account for Windows log in. This is more for larger organizations who have dedicated IT department, so it allows IT to manage devices via Microsoft's admin center/device management, etc. As solopreneur, by doing it this way you are making it a lot more complicated to manage your computer. I suggest you set it up with your personal account for Windows login. You can still use your Microsoft 365 apps logging in with your business account.

Hi Hanna,

Windows 11 setup does not validate domains based on whether they end in .com, .org, etc., but it does require that the address be part of a recognized Microsoft Entra ID (formerly Azure AD) or Microsoft 365 tenant. If your .nyc domain is not registered with Microsoft 365, the installer will reject it and force you into the personal account path.

The workaround is to first add your custom domain in the Microsoft 365 Admin Center, verify DNS records, and create the user account under that domain. Once the domain is verified, you can join the device to Entra ID by going to Settings → Accounts → Access work or school → Connect, and signing in with your business email. If you skip this step during initial setup, you can still convert the device later by joining it to Entra ID or a local domain. Without registering the .nyc domain in Microsoft 365, Windows will always treat it as a personal account and not a business identity.

Harry.

It seems that Windows 11 may have restrictions on certain email domains, particularly those that are not commonly recognized as business domains (like .com). If your email ends in .nyc, it might be causing issues during the setup process.

One potential workaround is to create a Microsoft account using a different email address that is recognized, such as a .com address, and then link your .nyc email address as an alias once the account is set up. This way, you can still use your business email while complying with the setup requirements of Windows 11.

If you continue to face issues, consider reaching out to Microsoft support for further assistance on this matter.