OneDrive cannot sign in (Windows 7) - Microsoft Community
answers.microsoft.com › en-us › msofficeAs per your description, it seems you cannot log-in to your Office 365 business account (educational account) on the OneDrive client app, but you can log into the personal account. Since you mentioned you are using Windows 7, this issue might be caused by the TLS 1.0&1.1 deprecation. If you are using Windows 7, 8 or 8.1. This is the most likely the reason why you cannot login OneDrive for business.