In the age of cloud storage and messaging apps, the question of how to transfer data between two computers via WiFi may seem archaic, but it remains critical for working with large amounts of information. Cloud storage requires time for uploads and downloads, as well as a stable internet connection, which isn't available everywhere. A local network allows you to achieve speeds limited only by the capabilities of your router and network cards, bypassing external ISP restrictions.
There are many scenarios where wireless file transfer is the only convenient solution: transferring projects between a work and home PC, creating a media library on a home server, or quickly transferring documents around the office. Local area network In this context, it acts as the most reliable and secure communication channel, not requiring physical cable connections, which is especially important for laptops and devices located in different rooms.
In this article, we'll cover all the current data sharing methods in detail, from built-in operating system tools to specialized software. You'll learn how to set up shared folders, use the command line for instant transfers, and choose the optimal method for your situation, ensuring maximum speed and security for your digital assets.
Preparing equipment and checking the network
Before configuring the software, you need to ensure that the physical connection is set up correctly. Both computers must be connected to the same wireless network. Wi-FiIf one computer is connected via cable to the same router as the other via WiFi, transmission will also be possible, but the speed may be limited by the wireless channel's bandwidth.
A critical point is determining the network type in the operating system. Windows may classify a new connection as "Public" by default, which prevents the device from being visible to others. Network profile must be changed to "Private" to allow discovery.
⚠️ Note: Switching your network profile to "Private" makes your computer visible to other devices on the network. Make sure you're in a trusted environment (home or office), not a public cafe.
You can use a command line utility to check the connection quality. Open a terminal and enter the ping command to the second computer's IP address to ensure the connection is stable.
ping 192.168.1.105If packets are lost or the response time is too high, the transfer speed of large files will be slow. In this case, it makes sense to move computers closer to the router or switch to a different range. 5 GHz, if your devices support this standard.
Setting up sharing in Windows
Properly configured sharing settings are essential for data exchange in Windows. The system has a built-in mechanism for sharing folders and printers, but it's often disabled by default for security reasons. To enable it, go to Control Panel and find the Network and Sharing Center section.
In the left pane of the window, select "Change advanced sharing settings." Here, you'll need to expand the "Private" profile (or "Current profile") and enable network discovery. You should also enable file and printer sharing. Without these settings, computers simply won't see each other in File Explorer, even on the same network.
- 🔹 Turn on network discovery - makes your PC visible to others.
- 🔹 Enable file and printer sharing — allows access to resources.
- 🔹 Allow management of HomeGroup connections - required for older versions of Windows.
Pay special attention to the "All Networks" section. It's recommended to enable sharing here so that any network user can access public folders. However, if you're in an office with many employees, it's best to use password protection.
After making changes, be sure to click the "Save Changes" button. Sometimes the system may take a few seconds or even a reboot for the new rules to apply. firewall and network policies.
Creating and sharing a folder
After setting up the network profile, you need to create an entry point for the files. You can use any existing folder or create a new one, for example, on a disk. D:\TransferRight-click on the folder, select Properties, and then go to the Sharing tab.
Click the "Advanced Settings" button and check the "Share this folder" box. Below, in the "Permissions" section, you can fine-tune user permissions. By default, the "Everyone" group is set to read-only. If you plan to not only send but also receive files to this computer, you should allow "Full Control" or at least "Change."
| Permission type | Description of action | Recommendation |
|---|---|---|
| Full access | Read, write, delete, change permissions | For trusted PCs only |
| Change | Reading, writing, deleting files | Optimal for exchange |
| Reading | View and copy only | For media libraries |
| Special rights | Fine-tuning access | For experienced administrators |
Don't forget to also check the "Security" tab in the folder's properties. It often happens that network access is allowed, but the NTFS file system permissions block writing. Add the "Everyone" user or a specific user to the list and grant them the appropriate permissions.
☑️ Checking folder settings
Connecting to a network resource
Once the folder on the first computer is configured, move on to the second device. The easiest way to find the shared resource is to open File Explorer and go to the Network section. If network discovery is enabled correctly, you'll see the name of the first computer in the list of devices.
If the computer doesn't appear in the list, you can connect directly using its IP address. Find out the sender's local IP address (command ipconfig in the command line) and enter it in the address bar of the explorer in the format \\192.168.1.XXThe system will request credentials: the login and password of the user logged in on the first computer.
⚠️ Important: Accounts on both computers must have passwords. Windows often blocks network logins for accounts with blank passwords for security reasons. Set a strong password or change the security policy.
For ease of frequent use, you can map a network folder as a separate drive. In File Explorer, click "This PC," then select "Map network drive" from the menu. Select the drive letter and specify the path to the folder. Now sharing data will be as easy as using a regular USB drive.
Copy speed will depend on many factors: router power, bandwidth usage, distance between devices, and the type of files being transferred. Multiple small files take significantly longer to copy than a single large archive of the same size.
Alternative methods of data transfer
If you don't want to mess around with setting up access rights and network profiles, there are simpler, albeit less functional, methods. One of the fastest is using the command line and the SMB protocol, or specialized P2P transfer utilities.
A popular solution is to use programs like Resilio Sync or SyncthingThey create a distributed network between devices, synchronizing folders in real time without the need for complex Windows configuration. You can also use the built-in Nearby Share feature in Windows 10 and 11, which works similarly to AirDrop.
- 🚀 FTP server — installing a simple server (for example, FileZilla Server) will turn your PC into a file storage with access via FTP.
- 🚀 HTTP server — Launching a local web server will allow you to download files through the browser of any device on the network.
- 🚀 Specialized software — programs like SHAREit or Send Anywhere create a temporary access point for quickly transferring files.
To transfer a large file one-time, you can run a simple HTTP server via Python, if you have it installed. The command python -m http.server 8000 in the folder with files will make them available at the address http://IP-address:8000 for any device on the network.
The Secret of High Speed
If your router supports the 802.11ac or ax (Wi-Fi 6) standard, but transmission is slow, make sure your network card drivers are up to date. Older drivers may not utilize the full potential of modern hardware, limiting speeds to 54 Mbps instead of the available 800+ Mbps.
Problem solving and optimization
Despite the apparent simplicity, users often encounter access errors or slow speeds. One of the most common issues is the error "Access Denied. You may not have permission to use this network resource." This almost always indicates a time desync on the computers or a login mismatch.
It's also worth considering the limitations of the wireless connection itself. WiFi is a half-duplex channel, meaning data is transmitted either in one direction or the other, but not all at once. Furthermore, the signal is susceptible to interference from microwaves, neighboring networks, and even aquariums.
To optimize speed, try to use a range 5 GHz, which is less congested and provides higher throughput. If computers are located far apart, use WiFi repeaters or mesh systems to boost the signal, but remember that each repeater cuts the speed in half.
⚠️ Note: Router interfaces and Windows versions are constantly being updated. Menu item names may differ depending on your router's firmware version or Windows build (Home, Pro, Enterprise). Always consult the manufacturer's official documentation if you can't find the item you need.
Frequently Asked Questions (FAQ)
Is it possible to transfer files between Windows and macOS via WiFi?
Yes, it's possible. On a Mac, you need to enable "File Sharing" in System Preferences. When connecting from Windows, use the path in the File Explorer address bar. smb://IP-address-MacYou will be asked to enter your Mac username and password.
What is the maximum transfer speed for WiFi?
Theoretical speed depends on the standard: 802.11n (up to 600 Mbps), 802.11ac (up to 6.77 Gbps), 802.11ax (Wi-Fi 6, up to 9.6 Gbps). Actual speed is always lower due to protocol overhead and interference, typically reaching 50-70% of the theoretical maximum.
Is it safe to transfer files through a shared folder?
On a home network with a strong WiFi password, yes. Using public access on public networks is strongly discouraged, as hackers can access your data. In such cases, use encrypted archives or a VPN.
Why does speed drop when transferring many small files?
This is due to the overhead of establishing a connection for each file and checking access rights. Compressing multiple small files into a single ZIP archive before transferring will significantly speed up the process.