Multi-monitor setups on Windows have gotten genuinely easier over the years, but a few settings and behaviors still trip people up regularly.
Per-Monitor Scaling
Windows supports independent DPI scaling per monitor since Windows 10 — essential when mixing a high-DPI laptop screen with a standard external monitor, since forcing one global scale factor makes one of the two either tiny or huge.
# Open Display settings directly to configure arrangement and scaling Start-Process "ms-settings:display" # Identify which monitor is which (shows a number overlay on each screen) # Settings > System > Display > Identify
Taskbar Behavior Across Monitors
Settings > Taskbar > Multiple displays lets you control whether the taskbar shows on all monitors or just the primary one, and whether taskbar buttons appear only on the monitor where that window is actually open — worth configuring deliberately rather than accepting the default, especially for setups with more than two displays.
The Classic Gotcha: Windows “Remembering” the Wrong Position
Disconnecting a monitor (like undocking a laptop) sometimes leaves windows stranded off-screen when reconnecting, because their remembered position no longer maps to an active display — Win+Shift+Left/Right arrow moves a focused window to the adjacent monitor and is the fastest recovery when this happens.