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Storage vs. Memory

Storage holds your apps, photos, and files. Memory, often called RAM, is the workspace a device uses while apps are running. They do different jobs: buying cloud storage does not add RAM to your computer.

Put it into practice: If you cannot save a file or install an app, check free storage. If switching between apps is sluggish, investigate what is running.

Find out why your computer is slow →

What Updates Actually Do

Updates can fix bugs, close security gaps, or add features. An app update changes one app; a system update changes the software that runs the device. Some updates need a restart before they finish.

Put it into practice: Back up important data, use the device’s built-in update tools or the official app store, and read the prompts before starting.

Work through common phone problems →

Cloud Storage, Sync, and Backup

Cloud storage keeps files on a service’s servers. Sync keeps copies in step across devices. Backup keeps recoverable copies. These can overlap, but they are not the same: deleting a synced file may also remove it elsewhere.

Put it into practice: Before deleting anything important, check whether the service keeps older versions or deleted files, for how long, and whether you have another recoverable copy.

Email App vs. Email Account

An email account stores and sends messages through a provider. An email app is a tool for reading and managing that account. One account can be used in several apps, and one app can hold several accounts.

Put it into practice: If the app is failing, try the provider’s official webmail site. If webmail works, the problem may be with the app or its connection.

Troubleshoot your email →

Wi-Fi and the Internet Are Different

Wi-Fi connects your device to a nearby wireless network. The internet is the wider network your router usually reaches through your provider. That is why you can have full Wi-Fi bars but still be unable to load a website.

Put it into practice: Try another device on the same network. If both have trouble, the router or provider may be involved. If only one does, start with that device.

Troubleshoot your Wi-Fi →

Browser, Search Engine, and Website

A browser is the app you use to visit websites. A search engine helps you find pages. A website is the destination. Typing into the browser’s address bar can either open an address or search for words.

Put it into practice: For sensitive accounts, use a known address or bookmark. A search result or sponsored listing is not proof that a site belongs to the company you want.

Read the beginner’s browser guide →

Passwords and Two-Factor Authentication

A password is one way to prove an account is yours. Two-factor authentication adds a second check, such as an authenticator code or a security key. Passkeys use cryptographic credentials instead of a password; they are a different sign-in method.

Put it into practice: Keep track of your recovery options. Never give someone a verification code or approve a sign-in you did not start.

Learn to spot suspicious requests →

Why Apps Ask for Permissions

Permissions let an app use things such as your camera, microphone, location, or contacts. A video-call app may need the microphone for calls, but that does not mean every app needs it all the time.

Put it into practice: Ask whether the permission fits the feature you are using. Review permissions in Settings, and remember that removing one may stop a feature from working.