Modern users often need to quickly transfer data between devices. USB cables, external hard drives, or cloud storage aren't always available or convenient in a given situation. Fortunately, a wireless local area network (WLAN) allows for high-speed data transfer using only your router's resources and the built-in features of your operating system.
There are many ways to accomplish this, from standard Windows tools to specialized software. The choice of method depends on the volume of data being transferred, the operating system version, and security requirements. In this article, we'll explore the most effective workflows that will help you forget about wires.
The main advantage of using local network The advantage is that it doesn't rely on internet speed. All data is transferred directly between devices via the router, which is especially important when working with gigabytes of video or archives. Below, we'll provide step-by-step instructions for various scenarios.
Basic preparation of the network and computers
Before setting up complex network sharing, you need to ensure both computers are on the same subnet. This means they must be connected to the same router, whether via cable or Wi-Fi. If one device is using a mobile hotspot and the other is connected to a home router, direct data exchange will not occur without additional routing configuration.
A crucial step is checking the network profile type. Windows operating systems distinguish between "Public" and "Private" networks. For devices to be able to discover each other, the profile must be set to "Public" and "Private." Private networkIn the public profile, the system blocks incoming connections for security purposes, hiding your computer from prying eyes in cafes or airports.
It's also worth checking computer names. They should be unique within the network to avoid addressing conflicts. The name should be written in Latin characters, without special characters or spaces, to make it easier to identify the device in the list of available resources.
⚠️ Attention: If you're on a private Wi-Fi network (like a cafe or hotel), enabling network discovery may make your private folders visible to other users. Make sure you're using a trusted connection or set up secure transfers.
To check the current connection status, press the key combination Win + R, enter ncpa.cpl and press Enter. In the window that opens, double-click the active adapter and select "Details." Here you will see the device's IP address. The first three digits of the address (e.g., 192.168.1) should match on both computers; only the last digit may differ.
Setting up sharing in Windows 10 and 11
The standard mechanism of Windows operating systems is based on the SMB protocol. To activate it, you need to change the sharing settings in the Control Panel. This method is ideal for regular use in an office or home environment where computers operate within a single ecosystem.
Go to "Settings" from the Start menu, then select "Network & Internet." Depending on your operating system version, you'll need to find "Advanced sharing settings" or "Properties" for your current connection. Here, enable the "Turn on network discovery" and "Turn on file and printer sharing" options.
After activating the basic settings, the system will prompt you to choose whether to allow password-less access. This is convenient for a home network, but it reduces security. If you plan to transfer confidential documents, it's better to leave the authorization requirement enabled and use accounts with passwords.
☑️ Check network settings
Now you need to share a specific folder. Right-click the desired directory, select "Properties," and go to the "Sharing" tab. Click the "Sharing" button, add the user "Everyone," and set the permission level (read or read and write). Once the settings are applied, the folder will be accessible over the network.
To access another computer's resources, open File Explorer and scroll down to "Network." If the computers can see each other, you'll see the name of the remote machine. Double-clicking it will require the username and password of the remote computer's account, unless you've disabled password protection.
Sometimes computers don't appear in the list even though the settings are correct. In this case, directly entering the IP address helps. Click Win + R and enter the address in the format \\192.168.1.5 (Replace the numbers with the current IP address of the target computer.) This method is often faster and more reliable than waiting for the list to update in "Network."
Using Nearby Share
Newer versions of Windows 10 and Windows 11 introduce a feature reminiscent of Apple's AirDrop. Called Nearby Share, it allows you to instantly transfer files and links between devices signed in to the same Microsoft account or within close proximity.
For this feature to work, both computers must have the modules enabled. Bluetooth And Wi-FiThe technology uses Bluetooth to detect the receiving device and then establishes a direct Wi-Fi connection for fast data transfer. This eliminates the need for complex shared folder setup.
You can enable this feature in the Settings -> System -> Nearby Sharing menu. Make sure the toggle is set to "On." You can also configure who can send you files: all nearby devices or just your personal devices.
The transfer process is as follows: right-click the file, select "Share," and select the target computer from the list of available devices. The receiving computer will receive a notification about the incoming file, which must be confirmed.
Why might Nearby Share not work?
This feature requires the discovery service to be working correctly. Often, the issue lies with Bluetooth drivers or power saving settings that disable the adapter. Both devices must also be unlocked and within 10 meters of each other.
Transfer speeds over this channel are typically higher than those over Bluetooth, but slower than using a full LAN connection. However, for quickly transferring photos or documents up to several gigabytes in size, this is the most convenient and modern method.
Transfer via FTP server
If standard Windows tools seem cumbersome or unstable, setting up an FTP server is a great solution. This method offers high speed and cross-platform compatibility: you can transfer files between Windows, macOS, Linux, Android, and iOS without installing additional software on client devices.
The method essentially involves turning one computer into a server, providing access to the file system, while the second connects to it as a client. To implement this on Windows, it's best to use specialized, yet lightweight software, such as FileZilla Server or even the built-in capabilities of IIS, although the latter is more difficult to configure.
Let's consider an option using the popular program FileZilla Server. After installation, you'll need to create a user, set a password, and specify the root folder to which access will be granted. In the server settings, it's important to specify the listening port (21 by default) and allow connections.
| Parameter | Default value | Recommendation |
|---|---|---|
| Protocol | FTP | FTPS (for encryption) |
| Port | 21 | Any free (>1024) |
| Encoding | UTF-8 | UTF-8 (for Cyrillic) |
| Speed limit | No restrictions | Depends on the Wi-Fi channel |
After starting the server on the second computer, simply open any file manager or browser and enter the address in the format ftp://192.168.1.XThe system will ask for the login and password you specified when setting up the server. After authorization, you will have full access to your files.
The advantage of this method is the ability to interrupt the transfer and resume it later, which is critical when transferring large files over an unstable Wi-Fi connection. Furthermore, the FTP protocol is less resource-intensive than Windows shared folders.
⚠️ Attention: The FTP protocol transfers data, including passwords, in cleartext. Avoid using an open FTP server on public networks. While this is safe for a home network with trusted devices, it's best to use SFTP or enable encryption for transferring critical data.
Synchronization via P2P programs and utilities
When it comes to regularly synchronizing large amounts of data between multiple computers, P2P (peer-to-peer) programs like Resilio Sync or Syncthing come to the rescue. They operate on the principle of a distributed network, creating a direct connection between devices without a central server.
The key feature of these utilities is their ability to work in real time. You can create a "Sync" folder, and any changes to it (adding, deleting, or editing files) will instantly be reflected on all connected computers. This is the ideal solution for working on projects across multiple machines.
To get started, you need to install the program on both computers. Upon first launch, a unique key or QR code is generated. By scanning the code on the second device or entering the key manually, you link the devices. The program will then automatically find a way to connect to your contact via the local network or the internet.
Unlike cloud storage, data is stored solely on your hard drives, guaranteeing complete privacy and unlimited storage. Speed is limited only by your Wi-Fi router's bandwidth and wireless standard (802.11n/ac/ax).
It's important to note that such programs require at least one device to be online for the initial handshake, but once connected, they can operate autonomously within the local network. This makes them an excellent tool for creating a decentralized home cloud.
Resolving speed and stability issues
Even with proper configuration, file transfer speeds over Wi-Fi can be disappointing. Often, the problem lies not with the software, but with the physical characteristics of the network. 802.11n in the 2.4 GHz range it rarely delivers real speeds higher than 3-4 MB/s, which is significantly slower than a wired connection.
To speed up the process, make sure both computers are connected to a 5 GHz network (802.11ac or ax). This band is less crowded with neighboring routers and provides throughput close to 100 Mbps or higher in real-world conditions. It's also a good idea to move the computers closer to the router or use a repeater to improve the signal.
Another factor slowing down transmission can be antivirus software. It scans every transmitted data packet in real time. When transferring large amounts of data, you can temporarily suspend protection or add the data folder to the exclusion list.
If you're using a laptop, check your power settings. In power-saving mode, the Wi-Fi adapter may reduce signal strength or go into sleep mode, which can lead to connection drops. Set the "High Performance" profile to ensure stable network card operation.
Why does speed drop when transferring many small files?
When transferring thousands of small files (such as photos or documents), the main load is borne not by the transmission channel, but by the disk subsystem and processor, which spend time opening and closing each file. Speed drops due to file system overhead. The solution is to compress small files into a single ZIP or RAR archive before sending.
Is it possible to transfer files if the computers are on different subnets?
Yes, but this will require setting up static routing on routers or using programs that can penetrate NAT (for example, TeamViewer or AnyDesk in file transfer mode), or port forwarding, which is more complex and less secure.
Is it safe to transfer files over an open Wi-Fi network?
No, traffic can be intercepted on open networks. Use only proven encrypted methods (SFTP, HTTPS, encrypted P2P) or establish a VPN tunnel between devices before transmitting.
What is the fastest method to transfer 100GB of data?
The fastest method remains an Ethernet cable (twisted pair), connecting computers directly or through a switch. Among wireless methods, FTP or SMB over a 5 GHz network (Wi-Fi 5/6) are the leading options, provided the signal is strong.