Quick answer
Configure the Windows display layout first, then test StartAllBack taskbar behavior on each monitor. Primary-display selection, scaling, taskbar placement, and button grouping are separate variables. Record them before troubleshooting an apparent multi-monitor defect.
What matters for this task
A second monitor may use a different resolution, density, or connection path. Docking can also change display identity and order. The most useful test includes disconnecting and reconnecting the real setup, rather than checking two static screens once.
Steps to follow
- In Windows Display settings, identify the primary monitor and confirm the physical arrangement shown on screen.
- Record each monitor’s scale and resolution. Keep those values constant during the first taskbar test.
- Open the same application on both displays and inspect labels, buttons, tray behavior, and the chosen taskbar position.
- Disconnect and reconnect the dock or secondary screen, then sign in again and repeat the workflow.
Verify the result
Check that the taskbar remains reachable and windows are represented as intended after the display topology changes. Note which screen is affected if a problem occurs.
Limits and rollback
Return to the default taskbar position and a simple grouping mode to isolate the issue. Do not change display scaling, taskbar size, and monitor order all at once.
Questions about this task
Should secondary taskbars always match the primary one?
Use the options supported by your current Windows and StartAllBack versions; do not assume every setting is shared.
Why does docking matter?
A dock can change monitor order, resolution, or detection, introducing variables absent in a static desktop test.
Primary sources
Publisher claims and Windows procedures are linked below. The comparison and diagnostic steps are editorial guidance, not a claim of hands-on Windows testing.
Windows 11 download · Review compatibility and the publisher’s license terms before installing.
Download for Windows 11 File source and installation notes