Cortana appears next to the Start button on the taskbar.
Source: tatoeba (8295576)
Taskbar
/ˈtæskˌbɑɹ/
Synonyms for "taskbar"
Ranked by relevance and common usage.
Sample sentences
3 total sentences available.
Try clicking on the taskbar.
Source: tatoeba (11535928)
You can download Google's deskbar for free […] It automatically installs itself as a toolbar on the Windows XP taskbar, but you have to turn it on by right-clicking the taskbar and choosing Toolbars → Google Deskbar.
Source: wiktionary