The following excerpt is taken from //docs.microsoft.com/en-us/deployoffice/windows-7-support:
Office 365 is governed by the Modern Lifecycle Policy, which requires customers to stay current as per the servicing and system requirements for the product or service. This includes using Office 365 ProPlus on a Windows operating system that is currently in support.
Using Office 365 ProPlus on older, unsupported operating systems may cause performance and reliability issues over time. Therefore, if your organization is using Office 365 ProPlus on devices running Windows 7, we strongly recommend your organization moves those devices to Windows 10.
For this reason, we advise against running SYSPRO client on Windows 7.