Using Classic Outlook on Windows for personal email, calendar, and contact management
According to KB3480364 all we can do is uninstall 2004 and revert back to old W10 version for those that haven't been messing with this for a month of Sunday's and not missed to timing out of this option or just wait for MS to correct and issue update
Known issues in this update
| Symptom | Workaround |
|---|---|
| Users of the Microsoft Input Method Editor (IME) for Japanese or Chinese languages might experience issues when attempting various tasks. You might have issues with input, receive unexpected results, or might not be able to enter text. | For more information about the issues, workaround steps, and the currently resolved issues, please see KB4564002 |
| System and user certificates might be lost when updating a device from Windows<br> 10, version 1809 or later to<br> a later version of Windows 10. Devices<br> will only be<br> impacted if<br> they have already installed any Latest<br> cumulative update (LCU) released<br> September 16, 2020 or later and then<br> proceed to update to a later version of Windows 10 from media<br> or an installation<br> source which does<br> not have<br> an LCU released October<br> 13, 2020 or<br> later integrated.<br> This primarily<br> happens when managed<br> devices are<br> updated using<br> outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft<br> Endpoint Configuration Manager. This<br> might also happen when using outdated physical media or ISO images that do not have the latest updates integrated.<br><br><br><br><br><br>Note Devices<br> using Windows Update for Business or that connect directly to Windows Update are<br> not impacted. Any device connecting to Windows Update should<br> always receive the latest versions of the<br> feature update, including the latest LCU, without<br> any extra steps. | If you have already encountered this issue on your device, you can mitigate it within the<br> uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window<br> might be 10 or 30 days depending on the<br> configuration of your<br> environment and<br> the version you’re updating<br> to. You<br> will then need to update to the later version of Windows 10 after the issue is resolved in your environment. Note Within the<br> uninstall window, you<br> can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You<br> must make this change before the<br> default uninstall window<br> has lapsed. For more<br> information, see DISM operating<br> system uninstall command-line options.<br><br><br> <br><br>We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks. |