Some users are experiencing the disappearance of the taskbar on Windows 10 and Windows 11 following the installation of the February update. Issues such as crashes and bugs causing the taskbar to vanish have been reported after the installation of updates KB5034763 for Windows 10 and KB5034765 for Windows 11.
Windows 10 and Windows 11 encounter issues in the taskbar.

Sources who are knowledgeable about the development of Windows have stated that Microsoft is currently facing issues with the taskbar in Windows 10 and Windows 11, and is actively looking into the matter, as reported by Windows Latest.
Some Windows 10 users have reported that the taskbar no longer shows icons for security, sound, network, and other features. In some cases, the taskbar may even disappear altogether.
Windows PC administrators are experiencing difficulties with the taskbar loading and entering the PIN code on the login screen.
When removing the KB5034765 Windows 11 update on Reddit, it is reported that an issue with the taskbar may arise. Windows Latest suggests that reinstalling the update can resolve the problem. Simply uninstall the problematic patch and run a new update check on Windows Update.
