In today's digital world, the need to quickly transfer large amounts of data arises constantly, whether it's work documents or family video archives. Using external hard drives or USB flash drives is often inconvenient, as they require physical access to both devices and available ports.
Luckily, the wireless network WiFi Allows you to create a bridge between devices on the same local network and transfer files at high speed. This method eliminates unnecessary cables and allows you to work from multiple locations simultaneously, which is especially useful for offices or homes with multiple devices.
In this article, we'll explore the most effective and proven methods of data exchange, from built-in operating system functions to specialized software. You'll learn how to set up shared access, use FTP protocols, and cloud storage for unattended synchronization.
Preparing equipment and setting up the network
Before transferring data, ensure that both devices are in the same information space. This is a basic requirement; ignoring it leads to 90% of connection errors. Both computers must be connected to the same router, whether via cable or wireless.
Check the network type in your operating system. For data exchange functions to work correctly, the network profile must be set to Private (Private). If the system considers the network public, it automatically blocks incoming connections for security purposes, hiding your PC from other devices.
It's also important to have discovery services enabled on both computers. In Windows, this is done through the Network and Sharing Center, where you need to enable network discovery and file sharing. Without these settings, the devices simply won't "see" each other in the list of available resources.
⚠️ Attention: When connecting to public Wi-Fi networks in cafes or airports, "Private Network" mode may be unsafe. Only use the methods described below on trusted home or corporate networks.
Make sure both devices have up-to-date network adapter drivers installed. Outdated software can cause connection instability or limit data transfer speeds to minimal values.
Shared Folder (SMB) Method in Windows
The most classic and reliable method, which doesn't require installing additional software, is to create a shared folder. This method uses the protocol SMB (Server Message Block), which is built into the Windows operating system kernel and ensures stable data exchange.
To begin, select the folder you want to share with others. Right-click it and select "Properties." Go to the "Sharing" tab and click "Advanced." Check the box next to "Share this folder."
Next, you need to configure access permissions. Click the "Permissions" button and ensure that the "Everyone" group or a specific user has "Read" or "Modify" permissions if you plan to not only retrieve files but also write new ones to this folder from another computer.
After setting up access on the receiving computer, open File Explorer and enter the IP address of the first computer in the address bar. You can find it by opening the command prompt and entering the command ipconfigThe address will be listed as an IPv4 address, for example, 192.168.1.5.
- 📁 Open File Explorer and enter
\\192.168.1.Xin the address bar. - 🔐 When prompted, enter the login and password for the computer account where the folder is located.
- 💾 Copy files as you would from a regular local drive.
If the system requires a password and you don't want to enter it every time, you can disable password protection in the Network and Sharing Center, although this reduces the overall security of your local network. For home networks without outsiders, this is an acceptable tradeoff for convenience.
☑️ Setting up a shared folder
Using an FTP server to transfer
For more advanced users or situations where you need to transfer files between different operating systems (such as Windows and Linux), the protocol is ideal. FTP (File Transfer Protocol). It provides more flexible file management and often operates more reliably during connection interruptions.
You'll need to install an FTP server on the computer where the files are stored. You can use a lightweight and free one. FileZilla Server or the built-in IIS component in Windows. After installation, you need to create a user and specify the root directory to which access will be granted.
On the client computer (where we will copy), you can use any FTP client, for example, FileZilla Client or even the standard Windows Explorer. In Explorer, simply enter the address in the format ftp://192.168.1.X in the address bar.
The main advantage of this method is the ability to interrupt a transfer and resume it later without data loss, which is critical when working with gigabyte archives over an unstable WiFi connection. The protocol also allows for background transfers without blocking the user interface.
| Parameter | Shared folder (SMB) | FTP server | Cloud services |
|---|---|---|---|
| Speed | High (depending on WiFi) | Very high | Limited by provider tariff |
| Difficulty of setup | Low | Average | Minimum |
| Work without the Internet | Yes (locally) | Yes (locally) | No |
| Security | Average | High (with adjustment) | High |
How to find a computer's IP address?
To find your IP address, press Win+R, type cmd, and press Enter. In the black window, type ipconfig and look for the IPv4 Address line. These are usually numbers like 192.168.0.X or 192.168.1.X.
Specialized software for synchronization
If the standard Windows tools seem too cumbersome, there are programs specifically designed for fast file transfers over a local network. They automatically detect devices, minimize the number of clicks, and often have a more user-friendly interface.
One of the most popular utilities is SHAREit or its analogues, such as Send AnywhereThese programs create a temporary tunnel between devices. Simply launch the app on both PCs, scan the QR code or enter a six-digit code, and the devices will connect.
Another powerful tool is Resilio Sync (formerly known as BT Sync). It uses P2P technology to synchronize folders in real time. You select a folder on one computer, the program generates a key, you enter this key on the second computer, and the files begin transferring automatically.
These solutions are especially convenient for regular work, when you want the "Projects" folder on your home PC desktop to always be identical to the folder on your laptop. Changes made on one device are instantly reflected on the other.
Cloud storage as an intermediate link
Cloud technologies, which essentially copy files over the internet, but are perceived by the user as a seamless process, cannot be ignored. Services like Yandex.Disk, Google Drive or Dropbox have clients for desktop OS that create a virtual disk.
Simply copy the file to the cloud service folder on one computer. The client program immediately begins uploading the data to the server. On the second computer, where the client is also installed and logged in, the file will automatically appear in the appropriate folder within a few seconds or minutes.
This method is ideal if the computers are in different physical locations (for example, one at home and one at the office) but connected to the internet. Speed will depend on your provider's bandwidth, but the convenience and accessibility of data from any device are worth it.
It's important to remember storage limits. Free plans are typically limited to 5-15 GB, so transferring large video archives will require either clearing the cloud or paying for a subscription.
⚠️ Attention: When using cloud services, sensitive data is encrypted but still stored on third-party servers. For particularly sensitive information, use additional encryption for archives before downloading.
Troubleshooting and speed optimization
Users often experience slow copy speeds, which can drop to 1-2 MB/s even with a good WiFi signal. The first reason is the use of an older standard. 802.11n or even 802.11gModern routers support the standard. 802.11ac (WiFi 5) and 802.11ax (WiFi 6), which provide gigabit speeds.
The second common problem is interference from neighboring networks, especially in apartment buildings at the 2.4 GHz frequency. Switching to the 5 GHz channel solves the problem of "clogged" airwaves and significantly improves connection stability when transmitting large amounts of data.
It's also worth checking your firewall settings. Sometimes your antivirus or Windows Defender may block a connection, deeming it suspicious. In such cases, it's worth adding an exception for the "Private" network type or temporarily disabling protection for diagnostic purposes.
- 📡 Use routers that support the standard
WiFi 5 (AC)or higher. - 🔌 Make sure both devices are connected to the same frequency (preferably 5 GHz).
- 🛡️ Check if your antivirus is blocking network traffic.
If the speed is still low, try updating your network adapter drivers from the manufacturer's website rather than through Windows Device Manager. Manufacturers often release optimized driver versions that improve performance with specific router models.
Why is my computer not visible on the network?
Most often, the problem lies with the network profile. If Windows considers the network "Public," it hides your computer. Go to Settings → Network & Internet → Status → Change connection properties and select "Private." Also, make sure the "Function Discovery Resource Publishing" service is running.
How to speed up copying small files?
Many small files (thousands of images or documents) take longer to copy than a single 10GB movie due to the overhead of creating each file. Solution: Pre-zip the files into a single archive (ZIP or RAR) on the sending computer, transfer the archive, and unzip it on the receiving computer.
Is it possible to transfer files between Windows and macOS?
Yes, macOS supports the SMB protocol out of the box. On your Mac, in Finder, select "Go" → "Connect to Server" and enter the Windows PC's address (smb://192.168.xx). You'll need to enter your Windows account login and password.