Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tools
Why a converted JPG gains a white background
Learn why transparent images turn white when saved as JPG, how to confirm the cause, and which format or background to use instead.
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Tests
How to check keyboard input without saving text
Check which keys a browser can detect without typing into a document. Learn what the results mean, what stays local, and how to troubleshoot missing keys.
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Tests
How to test a computer after a Windows update
Check your PC after a Windows update with a step-by-step hardware test, then use the results to spot settings, driver, or device problems.
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Tests
Why USB controllers affect sustained throughput
Learn how USB host controllers, hubs, and shared ports can slow long transfers, then compare a drive's read and write speeds and find the bottleneck.
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Tests
Why noise meter readings depend on microphone sensitivity
Learn why the same room can show different noise levels on different devices, how microphone sensitivity and gain affect readings, and how to compare them fairly.
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Tests
How to check printer alignment using fine lines
Print a fine-line test page to spot skew, gaps, and color shifts, then use the right printer maintenance steps to correct alignment.
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Tools
How to pick colors from an old logo scan
Learn how to sample clean HEX and RGB values from an old logo scan, avoid scan artifacts, and choose a reliable color for reuse.
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Tools
Font missing bold or italic? What to check
Find out whether bold or italic is missing from the installed font, hidden in the app, or being faked, then choose the right fix on Windows or Mac.
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Tests
When pixel flashing may be unsafe for photosensitive users
Learn when the Stuck Pixel Fixer’s flashing may be unsafe, who should skip it, warning signs to watch for, and safer ways to inspect a pixel.
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Tests
How to photograph a screen pixel defect for warranty
Capture a clear, honest photo of a screen pixel defect for warranty support, with tips for lighting, focus, test colors, and useful evidence.
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Tests
Can a browser fixer repair broken display circuitry?
Learn what the Stuck Pixel Fixer can and cannot do, how to tell a pixel problem from display circuitry damage, and what to check next.
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Tests
How to test touch accuracy near a camera cutout
Check whether taps near a phone camera cutout land where you touch, separate a screen dead zone from a layout issue, and choose what to try next.