How to transfer files from one PC to another via Wi-Fi

In today's digital world, the need to transfer large amounts of data between computers is a constant, whether it's backing up photos or transferring work projects. Using external hard drives or flash drives is often inconvenient due to their limited write speed and the wear and tear of their connectors. Therefore, the question of how to transfer files from one PC to another via Wi-Fi is becoming a pressing one for home network users seeking to optimize their workflow.

There are several proven methods for implementing this task, each with its own advantages depending on the size of the data being transferred and the user's technical expertise. Some methods require minimal configuration and work out of the box, while others provide advanced control over network flows. Choosing the optimal solution depends on how frequently you plan to perform such operations and the operating system installed on your devices.

In this article, we'll take a detailed look at the key protocols and tools that will allow you to effectively exchange data without unnecessary wires. You'll learn about standard Windows operating system tools, cloud storage capabilities, and specialized software. Understanding these mechanisms will help you forget about slow data transfers via instant messaging apps or email.

Using the Shared Folders feature in Windows

The most classic and built-in way to organize data exchange is to create a shared network folder. This method does not require third-party software and is based on the protocol SMB, which is enabled by default in Windows operating systems. To get started, both computers must be on the same local network, meaning they must be connected to the same router.

On the computer where the files are stored (the source), select the folder, open its properties, and go to the "Access" tab. Click "Advanced Settings" and enable the "Share this folder" option. The system will then prompt you to configure access permissions, allowing other network users to only read the files or granting them full permission to modify and delete the contents.

⚠️ Important: When setting up sharing, make sure your Windows network profile is set to "Private" and not "Public." For security reasons, the system blocks device discovery in a public profile, making the folder invisible to other PCs.

After setting up access rights, you need to find out the IP address of the source computer. This can be done by opening the command prompt and entering the command ipconfigFind the IPv4 address line; it will look something like 192.168.1.X. On the second computer, open File Explorer and enter two backslashes and the resulting IP address in the address bar, for example: \\192.168.1.5If everything is done correctly, you will see the shared folder and will be able to copy files at the maximum speed of your Wi-Fi connection.

• 📁 No additional software installation required.
• ⚡ The transfer speed is limited only by the router's bandwidth.
• 🔒 Requires proper permissions and firewall settings.
• 💻 Ideal for regularly sharing large files in the office or at home.

Setting up an FTP server for advanced users

For those who require more flexible control over the data transmitted, an excellent solution would be the organization FTP servers (File Transfer Protocol). This method is often used by system administrators, but is also available to regular users thanks to simple server programs like FileZilla Server or built-in modules in file managers. The main advantage of FTP is the ability to fine-tune user account and access rights management.

The setup process begins with installing the server portion of the program on the computer from which files will be retrieved. In the server settings, you must specify the root directory—the folder whose contents will be available for download. Then, a user with a password is created, granting read and write access to this directory. After the server starts, it begins listening on a specific port, usually port 21.

On the receiving computer, use any FTP client or even standard Windows Explorer to connect. Enter the address in the Explorer address bar in the following format: ftp://server_ip-addressThe system will prompt you for the login and password you created during server setup. After authorization, you can access the remote PC's file system as if it were a regular network drive.

ftp://192.168.1.10:21

It's important to note that when using FTP over Wi-Fi, a stable signal is critical. The protocol is sensitive to connection interruptions, although modern clients can resume downloads from where they were lost. It's also worth noting that FTP transfers data in cleartext by default, so this isn't a problem on home networks with strong WPA2/WPA3 encryption, but requires caution on public hotspots.

• 🛠 Allows you to create multi-user access with different rights.
• 🔄 Supports resuming interrupted file downloads.
• ⚙️ Requires initial configuration of ports and firewall rules.
• 📡 Works on top of TCP/IP, ensuring reliable packet delivery.

⚠️ Warning: If you plan to open FTP access from an external network (via the Internet), be sure to change the standard port 21 to a non-standard one and use complex passwords to avoid brute-force attacks.

Why is FTP faster than SMB in some cases?

The FTP protocol has lower overhead for packet headers when transmitting large, continuous data streams. Unlike SMB, which constantly checks access rights and file lock integrity, FTP operates in a simpler "byte stream" mode, which can provide a 10-15% speed boost under ideal Wi-Fi conditions.

Data transfer via web interfaces and HTTP

Modern file managers, such as Total Commander or Far Manager, as well as specialized utilities, allow file transfers via the HTTP protocol. This means your computer temporarily becomes a website accessible via a local IP address. This method is advantageous because it's cross-platform: all you need to receive files on the second device is a browser.

To use this method, simply launch the "HTTP Server" function in the file manager on the source PC. The program will generate a link that needs to be entered in the browser on the receiving device. The interface will resemble a standard file list, where you can click a document to download or upload a new file to the designated area.

A unique feature of this method is its versatility. You can transfer files not only between PCs but also to smartphones, tablets, or Smart TVs, as long as they're connected to the same Wi-Fi network. Transfer speed is limited by the Wi-Fi module's performance and the disk's write speed, but for one-time operations, this is one of the fastest methods, requiring no complex network configuration.

Synchronization via P2P applications (Resilio, Syncthing)

If you need to transfer files regularly and automatically, your best choice would be P2P (Peer-to-Peer) programs such as Syncthing or Resilio SyncThese utilities create a permanent communication channel between devices and synchronize specified folders in real time. As soon as you save a file to one folder, a copy of it instantly appears on the other computer.

These programs work by not using a central server to store data (like cloud drives), but by transferring information directly between your devices via Wi-Fi. This ensures high privacy and unlimited data transfer. To get started, simply install the program on both PCs, scan the QR code, or enter the device key to pair them.

One of the main advantages is the ability to work over the internet. Even if the computers are in different physical locations, the program will find a path between them (via a Wi-Fi router or mobile network) and transfer files. However, for local transfers over Wi-Fi, you can usually enable the "Local Discovery" option in the settings, which will speed up the process and reduce traffic.

• 🔄 Fully automated: files are copied automatically as they appear.
• 🔐 Data encryption during transmission over open channels.
• 🌐 Works both within the local network and over the Internet.
• 💾 Doesn't take up cloud space, data is stored only on your computer.

Using cloud storage as an intermediate link

While this method isn't technically direct Wi-Fi transfer between PCs, it's often the most convenient for users who don't want to bother with network setup. Services like Yandex.Disk, Google Drive, or Dropbox allow you to upload a file from one computer and download it on another. Essentially, the data goes this route: PC 1 -> Wi-Fi -> Router -> Internet -> Server -> Internet -> Router -> Wi-Fi -> PC 2.

The main drawback here is the dual use of internet bandwidth: first uploading, then downloading. If you have metered data or low internet speed, this method will be ineffective for gigabytes of data. However, for documents, photos, and small archives, it's ideal thanks to built-in file versioning and accessibility from any device worldwide.

Many cloud clients have a "smart sync" feature, where files are stored in the cloud but displayed in File Explorer. When needed, you simply open a file, and it's downloaded over Wi-Fi. This saves hard drive space, but requires a constant network connection to access the full contents of folders.

⚠️ Please note: When using cloud services, be aware of disk space limits. Free plans are often limited to 5-15 GB, which may not be enough for transferring large amounts of data, such as 4K videos or game distributions.

Problems with connection speed and stability

When transferring files over Wi-Fi, users often encounter situations where the actual speed is significantly lower than the router's advertised speed. This is due to the specifics of the wireless standard: half the bandwidth is spent on signal processing, packet acknowledgement, and interference control. Furthermore, the frequency range—2.4 GHz or 5 GHz—influences speed.

Range 2.4 GHz The 5 GHz band offers a longer range, but is heavily polluted by noise from neighboring routers and household appliances, resulting in file transfer speeds dropping to 2-4 MB/s. The 5 GHz band provides a much more stable channel and speeds of 40-80 MB/s and higher, but has a shorter range and is less effective at penetrating walls. For fast transfers of large files, 5 GHz is highly recommended.

The position of the router's antennas and the receiving PC's antennas also affects performance. Metal computer cases can shield the signal, so if the PC is positioned in an alcove or behind a monitor, speed may drop. In such cases, using a USB extender to move the Wi-Fi adapter to a more open area can help.

Why does the speed fluctuate when transferring files over Wi-Fi?

The data transfer rate over a wireless network is not constant. It changes dynamically depending on the signal strength, the number of connected devices, and the presence of interference. Wi-Fi protocols constantly test the channel quality and, if errors are detected, reduce the modulation rate to ensure data integrity, which is visually reflected as speed "jumps" in the transfer window.

Is it possible to transfer files if one PC is connected via cable and the other via Wi-Fi?

Yes, this is possible and even preferable. If one computer (for example, the one storing your media library) is connected to the router via a cable (LAN), and the other via Wi-Fi, the transfer speed will be limited only by the wireless client's speed. A cable connection will ensure stability and eliminate latency on the server side, which will improve overall data transfer performance.

How do I find out the IP address of another computer on the network?

If you can't find the IP address via the command line, use a network scanner. In Windows, you can use the Advanced IP Scanner utility or the built-in command arp -a in the command line, which will display a list of all devices with which your PC has recently communicated. Search for the device by name or network card manufacturer.