How to Fix Borderless Fullscreen Leaving the Taskbar Visible

Players choose borderless and the Windows taskbar still peeks at the bottom. The window matched the work area. Use the full monitor rectangle so it covers everything.

How to fix it

1. Use full monitor bounds

Position and size the borderless window to the monitor's full resolution rectangle, not the desktop work area, so it covers the taskbar.

2. Strip the window chrome

Remove the title bar and borders (borderless style) so there is no frame; some engines expose this as a 'borderless' or 'fullscreen window' flag.

3. Handle per-monitor DPI

On mixed-DPI setups, query the target monitor's actual pixel size so the window is not under- or over-sized by a DPI scale factor.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.