After logging into a virtual-type terminal (Windows) terminal, in rare cases, the Windows taskbar and Start menu may not appear, making it difficult to operate until the taskbar is activated.

These symptoms may be caused by an unstable Windows OS Explorer, which can be avoided by the following operations.

Pressing the [Ctrl]+[Alt]+[End] keys simultaneously on a screen displaying the Windows desktop will usually switch to the next screen, where you can select タスクマネージャー(Task Manager).

When the タスクマネージャー(Task Manager) screen starts up, enter a word such as 'explore' in the search keyword box marked with a magnifying glass, and "エクスプローラー"(explorer) will appear in the Windows process field. So, right-click on the area and select the "再起動(R)"(Restart) menu.

Please check if the symptoms are recovered by the above.