Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
Why tiny writes are slow on cheap flash storage
Learn why cheap flash drives handle large files faster than tiny writes, how to read a storage test, and what checks can isolate the bottleneck.
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Tests
Dust under glass or a stuck pixel? How to tell
Learn how to tell dust under a screen's glass from a stuck pixel using solid colors, careful cleaning, and a browser test before trying a pixel fixer.
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Tests
Mixed portrait and landscape monitors: how to fix issues
Fix cursor jumps, mismatched text size, and apps opening on the wrong screen when portrait and landscape monitors are used together.
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Tests
How to map Wi-Fi in a newly rented home
Map Wi-Fi room by room in a new rental, spot weak areas and repeat the checks after moving furniture or asking the landlord to adjust the router.
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Tests
How to test if a background tab drains your battery
Compare battery drain with a tab open in the background and closed, then learn what the Battery Meter can and cannot prove.
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Tests
How to test a cable after repeated bending
Check whether repeated bending has affected charging, compare the cable with a known-good one, and learn when to stop using it.
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Tests
When to run focused tests instead of a full PC check
A full PC check takes longer than a focused test. Learn which to run for one symptom, after a repair, or when you need a broader baseline.
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Tests
Why a browser noise reading is not a legal workplace survey
A browser noise meter can show rough sound levels, but it cannot prove workplace compliance. Learn what it misses and what survey to request.
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Tests
Phone misses taps while charging? What to check
Check whether charging is causing missed phone taps, compare touch response with a browser test, and try safe fixes for the charger, cable, and screen.
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Tests
What memory response time means for web apps
Learn what a RAM response-time result measures, when it can affect web apps, and how to compare it without mistaking it for a speed guarantee.
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Tests
How to check monitor geometry on a vertical display
Check a portrait monitor for stretched shapes, wrong orientation, or scaling problems, then separate Windows or macOS settings from a display fault.
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Tests
Why gray backgrounds reveal screen defects
A flat gray screen can make faint spots, bands, and uneven brightness easier to see. Learn how to test them and tell a defect from a setting.