52 troubleshooting references
Windows fixes
Start with the exact symptom. Each reference moves from reversible checks to deeper diagnosis and tells you when to stop.
Showing 4 of 52 articles
Display
Windows does not detect a second monitor
Check monitor power, input, cabling, topology, and graphics drivers.
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Display
Windows screen resolution is incorrect
Restore a suitable resolution using display identity, scaling, cable, and driver checks.
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Display
Screen flickers in Windows 11
Separate application flicker from graphics, cable, refresh, and panel faults.
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Display
Windows brightness slider missing or not working
Separate laptop brightness control, external-monitor controls, adaptive changes, and display-driver problems without changing resolution or registry settings.
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