Transferring large amounts of data between devices often turns into a test of patience, especially when you don't have a flash drive of the appropriate capacity or cable at hand. The situation is exacerbated when you urgently need to transfer 4K video or a project archive weighing tens of gigabytes, and wired connections are unavailable. Fortunately, modern technology makes it possible local network and transmit information over the air at high speed.
Using a wireless connection eliminates the need to search for adapters and cables, which are always lost at the most inopportune moments. You can remain mobile, moving around your apartment or office while the copying process is in progress. The key is to properly configure the hardware and select the appropriate software for your operating system.
In this article, we'll explore proven methods that work reliably and don't require complex technical knowledge. We'll cover both built-in Windows tools and third-party utilities that significantly speed up the process. You'll learn how to avoid speed drops and ensure the security of your data transfers.
Preparing equipment and checking the network
Before transferring data, you must ensure both computers are connected to the same wireless network. This is a fundamental requirement, as the devices simply won't "see" each other. If one laptop is on the guest network and the other on the main network, the connection will fail.
Please note the standard Wi-Fi, which your router supports. If the equipment operates in the 2.4 GHz band, the transfer speed will be limited by the standard's capabilities, often not exceeding 3-4 MB/s in reality. For working with large files, using the band is critical. 5 GHz, which provides throughput close to that of a wired connection.
It's also worth checking the network status in the operating system. Windows may consider the connected network "public" by default, which prevents other devices from seeing your computer. You'll need to change the network profile to "Private" or "Home" to allow discovery.
⚠️ Caution: When switching your network profile to "Private," make sure you're in a trusted environment. Leaving your computer visible to others in public Wi-Fi areas (cafes, airports) can lead to personal data leakage.
Make sure the network adapter is enabled on both devices and the drivers are working correctly. Sometimes, after a system update, settings can become corrupted, causing the computer to stop responding to discovery requests.
Setting up a shared folder in Windows
The most reliable method, requiring no additional software, is to use the built-in shared folder mechanism. This method is ideal for permanent work in a single location, such as between a home PC and a laptop. First, create a folder where you plan to store the files you want to transfer.
Right-click the created folder and select "Properties." Go to the "Sharing" tab, then click "Advanced." Check the box next to "Share this folder."
Next, you need to configure access rights. Click the "Permissions" button and ensure that "Read" and "Modify" are checked for the "Everyone" group or a specific user. This will allow the second computer to not only open files but also write new ones to this directory.
☑️ Check access settings
After setting up the folder on the first computer, move on to the second one. Open File Explorer and enter the IP address of the first computer in the address bar. You can find it by running the command prompt (cmd) and entering the command ipconfigThe line you need is called "IPv4 address".
Entering an address looks like this: \\192.168.1.55 (example). If the system prompts for a username and password, enter the credentials of the user on the first computer. If there is no password, you may need to allow passwordless login in the local security policy.
Using Nearby Share
Windows 10 and 11 now feature a native feature similar to Apple's AirDrop. It lets you transfer files simply by selecting them from the context menu and sending them to a nearby device. The technology uses a combination of Bluetooth for discovery and Wi-Fi Direct for fast data transfer.
To enable this feature, open "Settings" from the Start menu. Go to "System" and then find "Nearby sharing." Toggle the slider to "On" and select "Everyone" or "My devices" for visibility.
The transfer process is extremely simple: select the file, click the "Share" button in the top bar of File Explorer, or right-click to bring up the context menu. The second computer's name should appear in the list of available devices. After confirming the transfer on the second computer, the file will be saved to the "Downloads" folder.
This method is simple, but it has its limitations. Speed can be inconsistent, and device discovery can sometimes take a long time if Bluetooth drivers aren't working properly. While this is a great option for a one-time transfer of a couple of documents, for regularly backing up terabytes of data, a static shared folder is better.
Why can't I see the second computer?
If Nearby Share doesn't find devices, check that Bluetooth is enabled on both computers. Also, make sure Windows Firewall isn't blocking detection. Try temporarily disabling your antivirus to check.
Specialized software for fast transfer
When built-in Windows tools seem cumbersome or slow, specialized programs come to the rescue. They use their own compression and transfer algorithms, often bypassing operating system limitations. The leader in this niche is already the utility FastCopy or TeraCopy, but for the network, solutions like Resilio Sync or Send Anywhere.
Let's consider a method using a program Feem Or similar apps that work like local chat. You install the app on both PCs, and they automatically find each other on the local network. The interface is a dialog box where you can simply drag and drop files.
The advantage of such programs is their cross-platform support. You can easily transfer a file not only to another Windows PC, but also to a Mac, Linux, Android, or iOS device, as long as they're connected to the same router. Speed is usually limited only by the power of your Wi-Fi router.
| Program | License type | Speed | Peculiarities |
|---|---|---|---|
| Resilio Sync | Freemium | High | Real-time folder synchronization |
| Send Anywhere | For free | Average | Transfer by 6-digit code |
| Feem v4 | Paid/Free | Very high | Works without internet, LAN only |
| Dukto | Open Source | High | The simplest interface without any settings |
When using third-party software, it's important to keep track of the software versions on both ends of the connection. Sometimes an update on one computer can disrupt protocol compatibility with an outdated version on the other device.
FTP Server: A Professional Approach
For users who require maximum control and the ability to interrupt and resume downloads, deploying an FTP server is the best solution. This may seem complicated, but modern server programs such as FileZilla Server, make this process elementary.
By installing the server on one computer, you turn it into a network-accessible storage device. The second computer acts as a client. The main advantage of this method is the ability to use a download manager, which guarantees file integrity even during short-term connection interruptions.
Set up a user and password in the server program and specify the root folder for access. Then, on the client computer, enter the address in File Explorer. ftp://192.168.1.XXThe system will prompt you to enter your login and password, after which a window will open, just like with a regular folder.
⚠️ Caution: By default, the FTP protocol transfers data, including passwords, in cleartext. Use this method only within your secure home network and do not set up an FTP server on public networks.
This method is especially good for regularly backing up large amounts of data, such as video editing or databases. Download managers can queue files and only resume downloads that were interrupted, saving time.
Speed issues and their solutions
Even with an ideal setup, users often experience slow transfer speeds. Most often, the problem lies in the physical placement of devices or interference. A router located in a metal enclosure or behind a thick concrete wall will not be able to provide a stable 5 GHz signal.
Another common cause is operating in the 2.4 GHz band, which is heavily polluted by neighboring routers and household appliances (microwaves, baby monitors). On this channel, actual speeds rarely exceed 2-3 MB/s, which for 50 GB files means hours of waiting.
Check your Wi-Fi adapter settings in Device Manager. The "Advanced" tab in the adapter properties may sometimes limit speed or reduce power saving mode, which can reduce performance. Disable power saving mode for your network adapter in the Windows Power Control Panel.
Antivirus software is also worth mentioning. Aggressive protection settings can scan every transferred byte in real time, dramatically reducing throughput. When transferring large amounts of data, you can add the exchange folder to the scanner's exclusions.
Frequently Asked Questions (FAQ)
Is it possible to transfer files if there is no internet but there is a Wi-Fi router?
Yes, you can. A local area network (LAN) doesn't require internet access. The main requirement is that the router is turned on and both computers are connected to it, or that one of the computers creates a local access point (hotspot).
Why is the copying speed sometimes high and then drops to zero?
This is typical for Wi-Fi connections due to signal interference or the router switching between channels. Speed may also drop if you're copying many small files instead of one large one, due to the overhead of processing each file individually.
Is it safe to share personal photos through a shared folder?
A home network with a strong Wi-Fi password is quite secure. However, if your network is shared with guests, it's best to use encrypted software or temporary passwords provided by utilities like Send Anywhere.
What is the maximum file size that can be transferred?
The limitation isn't imposed by the transfer method, but by the disk's file system. If the disk is formatted in FAT32, you won't be able to transfer a file larger than 4 GB. For larger files, use the NTFS or exFAT file system.