What "check" means in tech support

When someone tells you to "check" something on your device, they mean look at the current state of that thing — not change it, just see what it is right now. A technician might say "check your storage" to mean "find out how much space you have left", or "check your connection" to mean "learn about you're actually online". The word appears constantly in troubleshooting because you can't fix a problem until you know what the numbers actually are.

The three things you'll hear about most often are storage (how much room is left on your device), battery (how much power you have), and connection speed (how fast your internet is moving data). Each one lives in a different place on your device, and each one requires a different path to find it.

Key Takeaways

  • Checking storage means finding out how much free space your device has left, which you do through Settings on any device.
  • Battery percentage and health information are usually visible from your device's main settings or, on phones, from a quick-access menu.
  • Internet speed requires a separate tool — either a speed test website or an app — because your device doesn't show this information by default.
  • On Windows, Mac, iPhone, and Android, the paths to find storage and battery are different, so knowing your device type matters.

How to check storage on Windows

Open Settings by pressing the Windows key and typing "Settings", then click the app that appears. Select "System" on the left side, then "Storage" near the bottom of that menu. You'll see a bar showing how much space is used and how much is free, broken down by category — Documents, Pictures, Videos, and so on.

If the bar is mostly full (more than 85% used), your device will slow down noticeably. If you need to free up space, the same Storage page shows you which folders are taking up the most room. You can also delete temporary files by clicking "Temporary files" in that same menu.

How to check storage on Mac

Click the Apple menu in the top-left corner, then select "About This Mac". Click the "Storage" tab. You'll see a horizontal bar showing how much space is used and how much is free, with different colors for different types of files — Photos, Documents, System, and so on.

If you're running low on space, the same window shows you which categories are using the most room. You can click on any category to see the individual files inside it. Unlike Windows, Mac doesn't have a built-in "delete temporary files" button, but you can manually delete files from the Downloads folder or use the Trash to empty old items.

How to check storage and battery on iPhone and Android

On iPhone, open Settings and tap "General", then "iPhone Storage". You'll see a bar at the top showing how much space is used and free. Below that, the app list shows which apps are taking up the most room.

For battery on iPhone, open Settings, tap "Battery", then "Battery Health & Charging". The percentage shown here is the current health of your battery — 100% means it's new, and anything below 80% means it's starting to wear out. If you see a percentage below 50%, the battery may not hold a charge for a full day.

On Android, the path varies by manufacturer, but usually you open Settings, search for "Storage", and tap the result. You'll see a bar showing used and free space. For battery health on Android, open Settings, tap "Battery", and look for "Battery Health" or "Battery Information" — not all Android phones show this, and the exact name depends on the manufacturer.

How to check your internet speed

Your device doesn't show internet speed in Settings because it changes constantly depending on what you're doing. Instead, you use a speed test website or app. The most common is Speedtest.net — go to that website on any device, click the big "Go" button, and wait 30 to 60 seconds. The result shows three numbers: read speed (how fast you receive data), upload speed (how fast you send data), and ping (how fast your device talks to the internet).

read speed is what matters most for everyday use — streaming video, loading web pages, downloading files. Upload speed matters if you video call, upload photos, or work from home. Ping matters mainly for online games. If your read speed is less than 25 Mbps and you're streaming video or working from home, that's usually the reason things feel slow.

Run the test at different times of day if you suspect a problem — your speed often drops in the evening when many people are online at once. If the speed is consistently much lower than what your internet provider promised, contact them with the Speedtest result in hand.

What to do if your device is running out of space

If your storage is above 90% full, your device will start to slow down or refuse to install updates. The fastest fix is to delete large files you don't need — video files and photo libraries are usually the biggest culprits. On any device, look for old Downloads folders, old backup files, or apps you haven't used in months.

If you want to keep the files but free up space, move them to an external drive or cloud storage like Google Drive, OneDrive, or iCloud. This removes them from your device but keeps them accessible. On Windows and Mac, you can also run a disk cleanup tool — Windows has one built in (search "Disk Cleanup"), and Mac users can use a third-party app like CleanMyMac, though this is optional.

What to do if your battery is draining fast

If your battery percentage drops noticeably in a few hours of normal use, first check which apps are using the most power. On iPhone, go to Settings > Battery > Battery Usage and look at the list. On Android, go to Settings > Battery and look for "Battery Usage" or "App Battery Usage". Close or uninstall any app that's using more than 10% of your battery.

If no single app is the problem, try these steps: lower your screen brightness, turn off location services when you're not using them, and close background app refresh for apps you don't need constant updates from. If the battery health is below 50%, the battery itself may be wearing out and a replacement might be necessary — contact the device manufacturer or a repair shop for pricing.

Frequently Asked Questions

What does "ping" mean when I check my internet speed?

Ping is the time it takes your device to send a message to the internet and get a response back, measured in milliseconds. Lower is better — anything under 50 ms is good for everyday use. High ping (over 100 ms) makes video calls lag and online games feel sluggish, even if your read speed is fast.

Is it bad if my battery health is at 80%?

Eighty percent is normal wear after a year or two of use — batteries naturally degrade over time. Your phone will still work fine. You should start thinking about a replacement when it drops below 50%, because the battery won't hold a charge through a full day of use.

Why does my storage say I'm using more space than all my files add up to?

Your device counts the operating system itself, system files, and temporary cache files in the total. These are invisible to you but take up real space. On Windows, you can see some of this in the Storage settings under "System & reserved". On Mac and phones, you can't easily see or delete these files — they're managed automatically.

Can I check my internet speed on my phone without using WiFi?

Yes — go to Speedtest.net on your phone's web browser while using mobile data (4G, 5G, etc.) instead of WiFi. This shows you how fast your mobile connection is. Keep in mind that mobile speed varies a lot depending on how many people are using the network and how far you are from the nearest tower.

What's the difference between checking storage and checking available space?

Storage used is the total amount of data on your device. Available space is what's left. If your device shows 256 GB total and 50 GB available, that means 206 GB is currently in use. You need at least 10% available space for your device to run smoothly, so in this example you'd want to delete files to get that 50 GB higher.