See Update to enable TLS 1.1 and TLS 1.2 as default secure protocols in WinHTTP in Windows.
Note: If you're running Office on Windows 7 (which is no longer supported, see Windows 7 end of support and Office), you need to make sure that TLS 1.2 is enabled by default. Excel for Microsoft 365 Word for Microsoft 365 Outlook for Microsoft 365 PowerPoint for Microsoft 365 Access for Microsoft 365 OneNote for Microsoft 365 Project Online Desktop Client Publisher for Microsoft 365 Visio Plan 2 Excel 2021 Word 2021 Outlook 2021 PowerPoint 2021 Access 2021 Project Professional 2021 Project Standard 2021 Publisher 2021 Visio Professional 2021 Visio Standard 2021 Office 2021 OneNote 2021 Excel 2019 Word 2019 Outlook 2019 PowerPoint 2019 Access 2019 Project Professional 2019 Project Standard 2019 Publisher 2019 Visio Professional 2019 Visio Standard 2019 Office 2019 Excel 2016 Word 2016 Outlook 2016 PowerPoint 2016 Access 2016 OneNote 2016 Project Professional 2016 Project Standard 2016 Publisher 2016 Visio Professional 2016 Visio Standard 2016 Office 2016 Excel 2013 Word 2013 Outlook 2013 PowerPoint 2013 Access 2013 OneNote 2013 Project Professional 2013 Project Standard 2013 Publisher 2013 Visio Professional 2013 Visio 2013 Office 2013 Microsoft 365 for home Office for business Office 365 Small Business Microsoft 365 admin InfoPath 2013 More.
