Everyday technology problems explained in plain language, with the fix that actually works.
Check your iPhone battery health in Settings > Battery: tap Battery Health on iPhone 15 and later, or Battery Health & Charging on iPhone 14 and earlier, and read the Maximum Capacity percentage; this guide explains what that number means, where the cycle count lives on each model, Apple's 80 percent service line and its 500- and 1,000-cycle design figures, and the optimised charging settings that slow the decline.
How to clear cache in Chrome, Safari, Firefox and Edge with the current menu paths: the Ctrl+Shift+Delete shortcut, the cache-only checkbox that keeps your sign-ins and passwords, and Safari's hidden Empty Caches command.
How to delete a Facebook account through Accounts Center: download your information first, then choose Delete account. You get 30 days to cancel by logging back in, and removing everything you posted can take up to 90 days.
How to connect AirPods to a laptop: the pairing gesture depends on your model — double-tap the front of the case on AirPods 4 and Pro 3, hold the back button on older models — then add them in Windows Bluetooth settings or connect them on a Mac. Plus the fixes for AirPods not showing up and connected but no sound.
How to factory reset an iPhone the safe way: back up first, then Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. What the erase deletes, how Activation Lock turns off, and the routes for a locked iPhone or no computer.
How to screen record on iPhone: open Control Center, tap the Record button, wait out the 3-second countdown, and stop from the red indicator. How to turn the microphone on for your voice, where recordings save, and what to check when there is no sound.
Reset AirPods to factory settings using Apple's own steps for each model: hold the setup button on the case for AirPods 1, 2 and 3 and AirPods Pro 1 and 2; double-tap the front of the case three times for AirPods 4, 5 and AirPods Pro 3; hold the Digital Crown and noise control button for AirPods Max. Plus unpairing first, reconnecting afterwards, and the previous-owner lock that a reset cannot remove.
How to screenshot on Android: press Power and Volume Down together — on Samsung, Pixel and most other phones. Plus scrolling screenshots with Capture more, Samsung's palm swipe, ways to capture without buttons, and where screenshots are saved.
Press Windows+Shift+S to screenshot on Windows: the Snipping Tool bar captures a rectangle, a window, the full screen or a freeform area to the clipboard. This guide covers every built-in method — the full Snipping Tool app, Print Screen and its variants, the auto-save shortcut to Pictures\Screenshots, Game Bar captures to Videos\Captures, and laptops with no Print Screen key.
How to turn off an iPhone: on Face ID models hold the side button and a volume button, then drag the Power Off slider. The Settings and Control Center routes that need no buttons, the per-model table, and how to turn it back on.
Learn how to screenshot on Mac with Shift-Command-3, Shift-Command-4 and the Screenshot toolbar: capture the whole screen, a selected area, one window or the Touch Bar, copy to the clipboard instead of saving, record the screen, and change where screenshots are saved.
Split the screen on Windows by pressing Windows + Left or Right arrow to snap a window to half the screen, then picking the second window from Snap Assist; this guide covers the keyboard route first, dragging to edges and corners, Windows 11 Snap Layouts with Windows + Z for three- and four-window splits, the laptop case, and how to turn Snap off or back on in Settings > System > Multitasking.
Laptop plugged in not charging? If it stops at 80% or 60%, a battery-care limit is probably doing it on purpose. If it will not charge at all, check the charger and outlet first, then the battery driver and a battery health report — in that order.
Printer not printing? Work through the fixes in the order that finds the fault fastest: power and paper, the print queue and spooler, the offline setting, the same-network check, then ink, blank pages and missing black or colour — with the test that separates a printer fault from a computer fault.
WiFi keeps disconnecting? Start with the one test that tells you whether the fault is your device, your router or your provider, then work through the fixes in order — forget and rejoin, restart the router properly, update the driver, and check the router settings that cause repeat drops.
Delete cookies in Chrome, Safari, Firefox and Edge using the current menu paths, checked against each browser maker's own help pages in November 2026: all cookies at once, one site only, or block third-party cookies instead — plus what you actually lose when you clear them.
Deleting an Instagram account runs through Accounts Center: download your data first, then choose Delete account under Deactivation or deletion. Your profile is hidden at once, you usually get about 30 days to change your mind by logging back in, and after that the account and its content are permanently deleted.
System Data is the grey block eating your iPhone storage — caches, logs and temporary files with no delete button. What it actually holds, how to check yours, and the safe steps, in order, that shrink it.