How to Check What's Hogging Your Internet/Data Usage

If your data cap disappears fast or your Wi-Fi feels slow, Windows can show you exactly which apps are using it — no extra software needed.

Method 1 — Settings (best for total usage over time)

1. Press Windows key + I to open Settings
2. Click Network & internet
3. Click Data usage
4. Use the network dropdown to pick the connection you want to check (e.g., Wi-Fi or Ethernet)
5. Use the Filter by dropdown to choose Last 24 hours, Last 7 days, or Last 30 days
6. Scroll down to see every app listed, highest data usage first

Note: Windows tracks usage separately for each network — so your Wi-Fi and Ethernet totals are shown separately, not combined.

Method 2 — Resource Monitor (best for right-now, real-time usage)

Use this when something is using data right now and you want to catch it in the act, rather than checking history.

1. Press Ctrl + Shift + Esc to open Task Manager
2. Click the Performance tab
3. Click Open Resource Monitor at the bottom
4. Click the Network tab
5. Expand Processes with Network Activity
6. Look at the Total (B/sec) column — the highest number is the app using the most data right now

Quick safety checklist

1. Don't end or disable a process just because it is using a lot of data
2. Some Windows services and apps may use data in the background for updates, syncing, or other normal tasks
3. If you don't recognize a process, look it up before changing or stopping anything
4. Don't change network settings unless you know what the setting does
5. Resource Monitor is for viewing information here — you don't need to change anything to find the app using your data

Good to know

1. This only tracks data going through your PC, not other devices (phones, TVs, other laptops) on the same Wi-Fi — for whole-home usage, you'd need to check your router's admin page instead
2. Resource Monitor also counts data transferred between devices on your local network (like sending a file to another PC), not just internet activity — so a high number there doesn't always mean pure internet usage
3. The 30-day figures in Settings don't reset on their own until the 30-day window rolls over; if you want a fresh count, there's a Reset usage stats option on the same Data usage page