Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tests
Does reducing screen brightness save battery?
Compare battery drain at different brightness levels, learn when dimming makes a noticeable difference, and separate screen use from other power loads.
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Tests
How to observe laptop battery drain during an online meeting
Measure your laptop's battery before, during and after a video call. Learn how to read the drain rate and tell normal use from a battery issue.
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Tests
Why battery wear and current discharge rate differ
Battery wear describes capacity lost over time, while discharge rate shows power use right now. Learn why they differ and how to check both.
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Tools
How to run a Pomodoro session in your browser
Set up 25-minute focus blocks and short breaks with a browser timer, then adjust the routine to fit your tasks without installing an app.
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Tests
How to retest a computer after a failed driver install
Retest the affected hardware after a failed driver install, separate a driver problem from a device fault, and choose the right next check.
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Tests
What a browser-based hardware check cannot detect
Learn what a browser-based hardware check can confirm, what it cannot see, and how to follow up when a test reports a problem.
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Tests
Why your keyboard types symbols instead of letters
Find out whether a stuck modifier, keyboard layout, or remapping is making your keyboard type symbols instead of letters, then fix the cause.
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Tests
How to detect a key that stays pressed
Use a browser keyboard test to check whether a key keeps registering after release, then find out whether the cause is dirt, software, or hardware.
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Tests
Why arrow keys scroll instead of moving the cursor
Find out why arrow keys scroll the page or sheet instead of moving the cursor, test whether the keys register, and fix focus or Scroll Lock.
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Tests
How to test if a USB adapter adds mic noise
Compare the same microphone with and without a USB adapter to find hiss, crackle, level changes, and other noise, then narrow down the cause.
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Tests
How to find the cleanest microphone input before a webinar
Compare your microphones in a quiet room, hear background noise and distortion, and choose a clean input before your next webinar.
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Tests
How to check laptop battery drain in a browser
Check your laptop's battery drain with a browser meter, compare the rate under the same conditions, and learn what to change if it drops fast.