What a VPN does and why you might want one
A VPN (Virtual Private Network) is software that encrypts your internet traffic and routes it through a server in another location. This means your internet service provider, the websites you visit, and anyone on your local network cannot see which sites you're browsing or what data you're sending. It does not make you anonymous — the VPN company itself can see your traffic — but it hides your activity from most other parties.
People use VPNs for different reasons. Some want privacy from their ISP or workplace network. Others travel and use public WiFi at cafes or airports, where unencrypted traffic is easier to intercept. Some use a VPN to access services that are blocked in their country or region. The trade-off is that your internet will be slower (because traffic takes an extra hop), and you are trusting the VPN company not to log or sell your data.
Before you install anything, decide whether a VPN actually solves your problem. If you are worried about your ISP tracking you, a VPN helps. If you are worried about a website stealing your password, a VPN does not help — you need HTTPS (the lock icon in your browser), which most sites already use. If you are worried about malware, a VPN does not protect you; antivirus software does.
Key Takeaways
- read a VPN process from the company's official website, not from an app store, to avoid fake or modified versions.
- Most VPN software installs like any other program: run the installer, follow the prompts, and restart your computer if asked.
- After installation, open the VPN app, create or log into your account, and click the button to connect to a server.
- A VPN hides your browsing from your ISP and local network but slows your internet and requires you to trust the VPN company with your data.
- Free VPNs often have limits on data, speed, or server locations, and some have been caught logging user activity despite claiming not to.
Choosing a VPN provider and getting the software
Hundreds of VPN companies exist, and they vary widely in trustworthiness, speed, and price. Some well-known names include ExpressVPN, NordVPN, Mullvad, ProtonVPN, and Surfshark. Before you choose, check whether the company publishes a privacy policy that says what data it collects and how long it keeps logs. A company that claims it keeps "zero logs" but does not explain what that means is a red flag.
Free VPNs are tempting, but many have serious drawbacks. Some limit how much data you can use each month. Others are slow because they have few servers and many users. A few have been caught logging user activity or selling data to advertisers, despite claiming otherwise. If you want to try a VPN before paying, choose a paid service that offers a money-back may provide (usually 30 days) rather than a free tier.
Once you have chosen a provider, go to their official website — not the App Store, Google Play, or a third-party read site. Look for a button labeled "read" or "get your free guide". read the version for your operating system (Windows or Mac). Save the file to your Downloads folder or wherever your browser puts downloads by default.
Installing the VPN on Windows
Open your Downloads folder and find the VPN installer file. It usually has a name like "ExpressVPN_Setup.exe" or "NordVPN_Installer.exe". Double-click it to start the installation. Windows may ask "Do you want to allow this app to make changes to your device?" — click "Yes" to continue.
Follow the on-screen prompts. Most VPN installers ask you to choose an installation location (the default is fine), agree to the terms of service, and decide whether to create a desktop shortcut. Click "Install" or "Next" until the installer finishes. Some VPNs ask you to restart your computer — if yours does, save any open work and restart.
After the installation completes, the VPN app should open automatically. If it does not, click the desktop shortcut or search for the app name in the Windows Start menu and click it. You will see a login screen. If you already have an account with the VPN company, enter your email and password. If not, click "Sign Up" or "Create Account" and follow the prompts to create one.
Installing the VPN on Mac
Open your Downloads folder and find the VPN installer file. For Mac, it is usually a ".dmg" file (disk image) with a name like "ExpressVPN.dmg". Double-click it. A window will open showing the VPN app icon and an Applications folder icon.
Drag the VPN app icon into the Applications folder. This copies the app to the location where Mac stores all your programs. Close the window when the copy is done. You can now eject the disk image by clicking the eject icon next to it in Finder, or by dragging it to the Trash.
Open Applications (you can find it in Finder under the Sidebar, or press Command+Shift+A). Find the VPN app and double-click it to launch it. Mac may ask "Are you sure you want to open this?" because it is the first time you are running it — click "Open". The VPN app will then ask for your login credentials. Enter your email and password, or create a new account if you do not have one yet.
Connecting to a VPN server and checking your connection
Once you are logged in, the VPN app will show a list of server locations or a map. Each location is a server in a different country or region. Choose a location close to you for the fastest speed, or choose a location in another country if you need to access a service that is blocked where you are. Click the location or click a large "Connect" button in the center of the app.
The app will show a status message like "Connecting..." and then "Connected". This usually takes a few seconds. Once connected, your internet traffic is encrypted and routed through the VPN server. You can now browse normally — the VPN runs in the background.
To check that the VPN is working, visit a website like "What is my IP address" or "IP leak test" in your browser. Before connecting to the VPN, the site will show your real IP address and location. After connecting, it should show the IP address and location of the VPN server you chose. If it still shows your real address, the VPN is not working — disconnect and reconnect, or restart the app.
Adjusting settings and understanding what the VPN controls
Most VPN apps have a Settings or Preferences menu. Common options include "Auto-connect on startup" (the VPN connects automatically when you turn on your computer), "Kill switch" (your internet cuts off if the VPN disconnects, so your real IP is never exposed), and "Split tunneling" (some apps can route only certain traffic through the VPN and let other traffic go directly).
A VPN protects traffic between your computer and the VPN server, but it does not protect everything. Your browser still stores cookies, history, and login information. Websites can still track you using fingerprinting (analyzing your browser settings and fonts). If you want more privacy, you may also want to use a privacy-focused browser like Firefox with tracking protection turned on, or clear your cookies regularly.
Remember that a VPN does not replace other security practices. You still need to use strong, unique passwords for each account, enable two-factor authentication where available, and be cautious about what you read or click on. A VPN is one tool among many.
Troubleshooting common installation and connection problems
If the installer will not run on Windows, right-click the installer file and choose "Run as administrator". If Windows shows a security warning, click "More info" and then "Run anyway". If the app will not open after installation, restart your computer — some VPNs need a restart to fully install.
If the VPN connects but your internet is very slow, try connecting to a different server location. Servers that are geographically closer to you are usually faster. If all servers are slow, the VPN service may be overloaded, or your internet connection itself may be slow. You can test this by disconnecting from the VPN and running a speed test at a site like Speedtest.net.
If the VPN will not connect at all, check that you have an active internet connection (disconnect and reconnect to your WiFi). Log out of the VPN app and log back in. If that does not work, uninstall the app, restart your computer, and reinstall it. Most VPN companies also have support pages or live chat on their website if you get stuck.
Frequently Asked Questions
Will a VPN hide my activity from my internet service provider?
Yes. Your ISP can see that you are using a VPN, but it cannot see which websites you visit or what data you send. Without a VPN, your ISP can see both the sites you visit and how much data you use on each one.
Can I use a VPN on public WiFi at a coffee shop?
Yes, and that is one of the best reasons to use one. On unencrypted public WiFi, someone nearby can intercept your passwords and data. A VPN encrypts everything, so even if someone is listening on the same network, they cannot read your traffic.
Do I need to use the VPN all the time?
No. You can turn it on and off whenever you want. Some people use it only on public WiFi or when they want privacy from their ISP. Others leave it on all the time. The trade-off is that your internet will be slower while it is connected.
What if the VPN company is logging my data even though it says it is not?
You cannot know for certain without auditing the company yourself. Choose a VPN that has been independently audited (some publish audit reports on their website) and has a clear privacy policy. Mullvad and ProtonVPN are known for strong privacy practices, but no VPN is risk-free — you are always trusting the company to some degree.
Can I use a VPN to read files illegally?
A VPN hides your activity from your ISP, but it does not make illegal activity legal. Copyright holders and law enforcement have other ways to identify people who share copyrighted material, and using a VPN does not protect you from legal consequences.