Transfer Files Between Laptops via WiFi in Windows 10: A Complete Guide

The modern pace of life dictates its own rules, and the need to quickly exchange gigabytes of data between two computers arises regularly. Whether it's transferring a photo collection, moving to a new one, laptop Whether it's a shared project or collaboration, finding a quick solution becomes a priority. USB drives are becoming a thing of the past due to their low speed and the risk of data loss, and cloud storage is often limited by data plans or internet connection speeds.

The optimal solution in a local environment is a direct connection via wireless network. Operating system Windows 10 has powerful built-in tools for organizing such sharing without requiring third-party software. In this article, we'll detail how to set up access to shared folders, ensure data security, and troubleshoot common errors that may arise during the process.

Before you begin setup, make sure both devices are on the same network and have the correct time settings. This may seem like a small issue, but clock missync can block access to resources on corporate or complex home networks. We'll look at a method that works reliably and doesn't rely on internet access, using only a local protocol. SMB.

Preparing network infrastructure and checking visibility

The first step is to ensure basic connectivity between devices. Both computer must be connected to the same router. If you're using a mobile hotspot, make sure both devices are set to the "Private" network profile, not "Public," as Windows blocks detection of other devices for security reasons.

Check if network discovery is enabled. To do this, go to Control Panel → Network and Internet → Network and Sharing Center → Change advanced sharing settingsHere you need to activate the switches to enable network discovery and file and printer sharing in the current profile.

It's also important to check the IP addresses of your devices. While these are usually assigned automatically on a home network, static addresses can make things easier in the future. Make sure the addresses are in the same subnet, for example, 192.168.1.5 and 192.168.1.7.

• 📡 Make sure both laptops are connected to the same Wi-Fi network (SSID).
• 🔒 Check the network type: it should be "Private" and not "Public".
• 👁️ Turn on "Network discovery" in Advanced sharing settings.
• 🔄 Reboot your router if the devices don't see each other after all the settings have been completed.

Users often encounter computers that simply don't appear in the "Network" section. In this case, restarting the "Function Discovery Resource Publishing" service helps. Open a command prompt as administrator and enter the command to restart the service if standard methods don't help.

⚠️ Attention: If you're in a public place (a cafe or airport), it's strongly recommended that you don't enable file sharing. Your folder could become visible to attackers on the same network.

After completing these steps, open File Explorer and go to the "Network" section. If you see your computer and your contact's computer, then the physical layer and basic protocol settings are working correctly.

Setting up a shared folder for data transfer

Now you need to create a location where the files will be stored for transfer. Create a new folder on the recipient's or sender's drive (depending on who will be sharing the resources) and name it something like Exchange.

Right-click the folder, select "Properties," and go to the "Sharing" tab. Click "Advanced" and check "Share this folder." Under "Permissions," ensure that the "Everyone" group or a specific user has "Read" and "Modify" permissions.

For more flexible access control, go to the "Security" tab. Here you can add a specific user from the list or the "Everyone" group, granting them the necessary permissions. This is a critical step, as it's where the operating system decides whether to allow the user to access files.

If you plan to transfer files frequently, it might be a good idea to disable the password requirement for the current configuration, although this will reduce security. You can do this in the Network and Sharing Center by selecting "Turn off password-protected sharing."

Once configured, the folder will be accessible over the network. To access it from another laptop, you can enter the path in the File Explorer address bar in the following format: \\ComputerName\FolderName or \\IP Address\FolderName.

Using Nearby Sharing

In more recent builds Windows 10 (Starting with version 1803), a feature similar to Apple's AirDrop called "Nearby Share" was introduced. This method is ideal for quickly transferring individual files without configuring complex network settings.

To activate, open Settings → System → General notificationsFind the "Nearby Sharing" section and enable it. Select "All Nearby" or "My Devices," depending on whether you want to receive files only from your Microsoft accounts or from any device within range.

The transfer process is simple: right-click the file, select "Share," and find the target laptop in the list of available devices. A notification will appear on the receiving end, requiring confirmation.

• 📲 The function works via Bluetooth for discovery and Wi-Fi Direct for data transfer.
• 🚀 The transmission speed is significantly higher than that of classic Bluetooth.
• 🔐 Requires sign-in to a Microsoft account on both devices for maximum compatibility.
• 📉 Not suitable for transferring hundreds of small files at once due to protocol overhead.

It's worth noting that "Nearby Sharing" can be sensitive to wireless adapter drivers. If the "Share" button is grayed out or no devices are found, try updating your Wi-Fi module drivers through Device Manager.

Alternative methods: FTP and third-party software

If built-in Windows tools are unstable or you need advanced features (for example, _resume_ an interrupted boot), it's worth turning to time-tested solutions. One of the most reliable methods is organizing FTP servers.

Using specialized software such as FileZilla Server or Total Commander With FTP server functionality, you can create a powerful transfer channel. This method provides complete control over speed, logging, and access rights.

Another popular option is local area network synchronization utilities such as Resilio Sync or SyncTrayzor (a client for Syncthing). They create a P2P connection between devices, automatically finding them on the network and syncing selected folders in the background.

Comparison of data transfer methods:

The tool you choose depends on your needs. For a one-time photo transfer, use "Nearby Share," while for ongoing backup of work projects, use a shared folder or FTP.

Troubleshooting network access and errors

Setting up a network in Windows rarely comes without surprises. One of the most common errors is "Windows cannot access \\computer." This is often due to disabled services or being blocked by an antivirus program.

Check the "Support SMB 1.0/CIFS File Sharing Support" service. In newer versions of Windows 10, it's disabled by default due to vulnerabilities, but sometimes you need to enable it to communicate with older devices or some NAS devices. Only do this on a trusted network.

Also, make sure that the "File and Printer Sharing" rules are enabled in your firewall. If you use a third-party antivirus (Kaspersky, ESET, Dr.Web), its built-in firewall may block local connections, considering them suspicious.

⚠️ Attention: Windows 10 settings interfaces may vary depending on the build version (Home, Pro, Enterprise) and installed updates. If you can't find the item, use the search in Settings or the command control to call the classic control panel.

Another common issue is the requirement to enter a login and password that doesn't work. Try entering ComputerName\Guest or ComputerName\ReceivingPartyUserName, and leave the password field blank if password protection is disabled.

Optimizing WiFi Transfer Speed

The speed of copying files over the air can be disappointing if you don't take into account a few technical nuances. 802.11ac (Wi-Fi 5) or ax (Wi-Fi 6) Essential for comfortable work with large files. Old b/g/n standards will be a bottleneck.

Make sure both laptops are connected to the 5 GHz band. The 2.4 GHz band is very noisy and rarely provides real-world speeds above 20-30 Mbps, while 5 GHz allows for speeds of 300-400 Mbps and higher under ideal conditions.

Router placement also plays a role. If laptops are in different rooms with thick walls, the signal will be lost. For maximum speed when transferring terabytes of data, it's best to position both laptops close to the access point.

• 📶 Use the 5 GHz band for maximum throughput.
• 📉 Avoid using low-end USB Wi-Fi adapters, as they get hot and reduce speed.
• 🔄 Close background applications that consume traffic (torrents, streams) during the transfer.
• 📡 Make sure your Wi-Fi channel isn't overloaded by neighboring networks (you can check this using the Wi-Fi Analyzer app).

If the speed is still low, try temporarily disabling antivirus scanning of network files. Real-time scanning of every transferred byte can significantly reduce performance.

Why does the speed drop to zero when copying?

This often happens when working with thousands of small files. The operating system spends time creating metadata for each file. Solution: Compress multiple small files into a single ZIP/RAR archive before transferring.

Is it possible to transfer files without a router?

Yes, you can create a direct Computer-to-Computer (Ad-Hoc) connection or use the Mobile Hotspot feature on one laptop to allow the other one to connect directly to it.

Is it safe to share passwords over a shared network?

No, the SMB protocol in older versions does not encrypt traffic. To transfer sensitive data, use password-protected archives or dedicated secure channels.