Microsoft has released out-of-band updates that resolve the Windows connectivity issue which the company had encountered last week. The issue, as you may remember, was preventing cloud apps like Microsoft Teams, Microsoft Office, Microsoft Office 365, Microsoft Outlook from their normal work, and also was affecting VPN connections. The released updates are not available via the Windows Update as of this writing. The user has to download them manually from the Microsoft Update Catalog. The links are as follows: Windows 10, version 1909 (KB4554364 ) Windows 10, version 1903 (KB4554364 ) Windows 10, version 1809 (KB4554354 ) Windows 10, version 1803 (KB4554349 ) Windows 10, version 1709 (KB4554342 ) Source : https://docs.microsoft.com/en-us/windows/release-information/windows-message-center