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 an SD card before using it in a dashcam
Check a dashcam SD card's real capacity before loading it. Learn how to run a read-back test, spot failures, and what the result cannot prove.
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Tests
How to check Wi-Fi coverage before buying a mesh kit
Map Wi-Fi quality room by room before buying mesh. Learn how to spot coverage gaps, separate them from slow internet, and choose where to retest.
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Tests
Why fast internet still has high ping
Learn why a fast connection can still feel laggy, how to separate Wi-Fi delay from loaded-network congestion, and what to test next.
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Tests
Private DNS vs VPN: what each one protects
Learn what private DNS protects, what a VPN hides, and how to use a browser test to check whether your real IP address is exposed while connected.
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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.