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
How to check a camera in two browsers
Compare the same webcam in two browsers under matching conditions, then tell a camera problem from permission, exposure, or browser differences.
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Tests
How to find dead spots on a touchscreen
Scan every part of a touchscreen in your browser, distinguish a dead zone from a software issue, and decide what to try before repair.
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Tests
Why browser connections fail after router firmware updates
Check whether a router update changed Wi-Fi, DNS, or security settings, then test connection drops and restore access safely.
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Tests
What to test before using a USB stick for system recovery
Check a USB stick's real capacity and read-back before trusting it for system recovery, then confirm the recovery media can start on your device.
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Tests
USB 2 extension slowing down a fast flash drive?
Check whether a USB 2 extension is capping your flash drive, compare speeds with and without it, and choose a faster cable or port.
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Tests
Punctuation keys not working? What to check
Find out whether punctuation keys are broken, mapped to a different layout, or blocked by an app, then try the fixes for Windows and Mac.
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Tests
How to plan Wi-Fi coverage for a basement apartment
Map Wi-Fi quality room by room in a basement apartment, find weak spots, and plan where to place a router, access point, or mesh unit.
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Tests
How to create a baseline after reinstalling Windows
Run a full hardware check after Windows is installed, record the results and settings, and use them to spot changes after updates or repairs.
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Tests
How to test a USB stick for a bootable installer
Check a USB stick's read and write speed before making an installer, learn what the results mean, and verify that it boots on your computer.
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Tests
How to compare street noise with windows partly open
Compare closed and partly open windows with repeatable microphone readings, and learn how to separate a real change from passing traffic.
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Tests
Why closing a laptop lid changes display coordinates
Learn why screen positions shift when you close a laptop lid, how to compare connected displays, and what to change in Windows or macOS.
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Tests
How to inspect a USB drive after changing its file system
Check the new file system, confirm files can be read and written, and measure USB or SD speed before trusting the drive with important data.