Fix Microsoft 365 sign-in issues with Outlook for Windows
If you can't sign in to your Microsoft 365 email in Outlook on Windows, your computer might be using an older sign-in experience. Update Windows and turn on the newer sign-in experience to fix it.
Required: You need administrator access to the affected computer running Windows 11. If you don’t have administrator access, contact your admin.
Warning: These steps change the Windows Registry. Incorrect registry changes can cause serious problems with your computer. Only change the setting described below.
- Select Start, and then Settings.
- Select Windows Update, and then Check for updates.
- Install all available updates, and then restart your computer if prompted. The newer sign-in experience requires Windows 11 H125 or later.
- Select Start and search for Registry Editor.
- Right-click Registry Editor, and then select Run as administrator. If Windows asks for permission, select Yes.
- Go to
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\AAD. If the AAD key doesn't exist, create it:- Go to
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows. - Right-click Windows, and then select New > Key.
- Enter
AADas the key name.
- Go to
- Select the AAD key. In the right pane, right-click an empty area, and then select New, and then DWORD (32-bit) Value.
- Enter
WebView2Integrationas the value name. - Double-click WebView2Integration, enter
1in Value data, and then select OK. - Close Registry Editor, and then restart your computer.
- Open Outlook and sign in to your Microsoft 365 email account. When prompted, complete the GoDaddy sign-in. You'll see the newer sign-in experience and can use your email in Outlook.
Note: To turn off the newer sign-in experience, change the WebView2Integration value to
0.