How to transfer data from one computer to another via Wi-Fi

Modern users often need to transfer large amounts of data between two devices in the same location. Using external storage devices, such as flash drives or hard drives, may seem like a simple solution, but it's not always effective, especially if there's no available USB port or the drive itself is occupied. In such situations, wireless technology comes to the rescue, allowing data exchange without unnecessary wires and intermediary devices.

Transferring files over a local network is not only convenient but also often faster than using cloud storage, where speeds are limited by your provider's plans. A properly configured system allows you to work with files directly, as if they were on your local drive. In this guide, we'll explore proven methods for setting up such a connection, focusing on both built-in operating system tools and specialized utilities.

Before you begin setup, you need to ensure both computers are connected to the same wireless network. This is a basic requirement, without which the devices simply won't "see" each other in the digital space. If the router distributes the internet and connects your devices into a single ecosystem, then half the work is already done; all that remains is to configure the software for data exchange.

Preparing equipment and checking network connection

The first step is to diagnose the current network status. Make sure that the network is active on both computers. Wi-Fi adapter and the connection status is set to "Private Network" or "Home Network." In Windows, this is a critical setting, as in "Public Network" mode, the system blocks discovery of other devices for security reasons. Check this in the Network and Sharing Center to avoid detection errors.

It's also worth paying attention to the frequency range your router operates in. Modern standards 802.11ac And 802.11ax (Wi-Fi 6) provides significantly higher throughput than the legacy standard. nIf you plan to transfer files tens of gigabytes in size, the time difference could be hours. Ideally, both devices should support the 5 GHz band.

You can use the command line to check the visibility of devices. On one of the computers, find out its IP address by entering the command ipconfig in the console. Write down this address; you'll need it for a direct connection if automatic discovery doesn't work. Make sure the addresses are on the same subnet; they usually start with 192.168.0. or 192.168.1..

⚠️ Warning: If your computers are in different domain zones of the corporate network or one of them uses a VPN tunnel with full traffic, local transmission may be blocked by routing rules.

Setting up sharing in the Windows operating system

The Windows operating system has powerful built-in file sharing tools, which are often overlooked by users due to their complex interface. To enable file sharing, open Control Panel and go to Network and Sharing Center. Select "Change advanced sharing settings."

In the menu that opens, you'll see your network profiles. For the current profile (Private), you need to enable network discovery and file and printer sharing. It's also recommended to enable "Allow management of network connections" to make troubleshooting easier. Don't forget to save your changes by clicking the corresponding button at the bottom of the page.

Setting up password-protected access deserves special attention. If you're in a trusted home environment, you can disable the "Password-protected sharing" feature. This will allow you to connect to shared folders without constantly entering your credentials, significantly speeding up your work. However, in offices or other busy environments, leaving this protection enabled is a basic requirement. cybersecurity.

What to do if Windows reports a network error?

Often, the problem lies in services. Press Win+R, enter services.msc, and locate the "Function Discovery Resource Publishing" and "Function Discovery Provider Host" services. Make sure they are running and the startup type is set to "Automatic."

Creating and sharing a shared folder

After configuring the network settings, you need to create a sharing point—a folder whose contents will be accessible to the other computer. Create a new folder in a convenient location, such as drive D, and give it a descriptive name, such as ExchangeRight-click on it and select "Properties", then go to the "Sharing" tab.

Click the "Advanced Settings" button and check the "Share this folder" box. In the "Permissions" section, you can fine-tune permissions: allow or deny read, modify, or full access for the "Everyone" group or a specific user. For quick file transfers, "Read and Write" permissions are usually sufficient.

There's also a simplified method via the "Sharing" tab in the folder's properties, where you can quickly add the "Everyone" user and assign them a permission level. This method is less flexible, but more intuitive for beginners. Once the settings are applied, the folder will be accessible in your network environment.

Connecting to a network drive and transferring files

Once the folder is shared, you need to find it on the network on the second computer. Open File Explorer and select Network in the left pane. If the computers can see each other, you'll see the name of the first computer. Double-clicking it will open the shared resources. If the name isn't visible, you can enter the IP address directly into File Explorer's address bar using the following format: \\192.168.1.5.

For ease of continuous operation, we recommend mapping the shared folder as a network drive. To do this, select "Map as network drive" from the folder's context menu. The system will assign it a drive letter (e.g., Z:), and it will appear in "My Computer" as a full-fledged hard drive partition. This allows you to access files on the remote PC using any program.

The copying process is performed using the standard drag-and-drop method or via the clipboard. Transfer speed will depend on the Wi-Fi signal quality and channel congestion. When working with large files, the system may display an estimated remaining time, which may fluctuate depending on airborne interference.

⚠️ Warning: Interrupting a large file transfer over Wi-Fi due to signal loss may corrupt the copy. Always verify the integrity of archives after transferring.

Using third-party software for fast transfer

If Windows' built-in tools seem too cumbersome or unstable, you can use specialized software. Programs like Resilio Sync, Send Anywhere or Feem They create their own transmission channels, often bypassing complex Windows settings. They operate on a P2P principle, transferring data directly between devices.

The utility is especially popular Sharedrop or its browser-based equivalents. You don't need to install anything: just open the website on both computers, and they'll find each other. Files are dragged into the browser window, and a download prompt appears on the other device. This is ideal for a one-time transfer.

Another option is to use instant messengers or cloud synchronizers such as Telegram Desktop (Favorites function) or DropboxWhile data can technically pass through the server, many clients can switch to LAN mode when on the same network, speeding up the process. However, for truly large volumes, dedicated solutions are better suited.

• 🚀 Resilio Sync - Great for syncing entire folders in real time across multiple devices.
• 🌐 Send Anywhere — allows you to transfer files using a 6-digit code without registering accounts.
• 📡 Feem — works without the Internet, creating a local network even through the hotspot of one of the laptops.

⚠️ Please note: The interfaces and functionality of third-party programs may change with updates. Always check the latest security settings in the software developer's official help center.

Solving common connection problems and errors

Users often encounter a situation where computers can't see each other despite the correct settings. First, check your antivirus and firewall. They may be blocking incoming connections. Try temporarily disabling protection or adding an exception rule for "File and Printer Sharing" in your firewall settings.

Another common issue is different versions of the SMB protocol. Windows 10 and 11 disable the legacy SMBv1 protocol by default, which is used in Windows XP and older versions of Windows 7. If you're trying to connect a modern PC to an older one, you'll need to enable SMB 1.0 support through Windows Features, although this reduces overall system security.

It's also worth checking the Print Spooler and Server services. Sometimes stopping them (accidentally or by system optimizers) can cause the computer to disappear from the network environment. Make sure these services are running and running automatically. Restarting the router often helps renew DHCP leases and resolve address conflicts.

Error: "Access Denied. You may not have permission..."

This is a classic NTFS permissions issue. Go to Folder Properties -> Security -> Add -> Enter "Everyone" -> Check Names -> OK. Then grant "Everyone" full permissions.

Why is the Wi-Fi transfer speed much lower than what is stated on the router?

Actual speed is always lower than theoretical due to protocol overhead, interference in the air, distance to the router, and the characteristics of the receiving device's antennas. Furthermore, the speed is divided equally among all active network clients.

Is it possible to transfer files between Windows and macOS via Wi-Fi?

Yes, this is possible via the SMB protocol. On a Mac, select "Connect to Server" in Finder and enter the IP address of the Windows PC. On Windows, you need to share the folder using the standard method.

Is it safe to share personal data through a shared folder?

On a home network with a strong Wi-Fi password, yes. On public networks (cafes, hotels), this is strictly not recommended, as other users may try to intercept your traffic or access your resources.