Establishing local interaction between two laptops often becomes necessary for quickly transferring large amounts of data or collaborating in online games. In the operating system Windows 10 This process is significantly simplified compared to previous versions, but still requires careful configuration of security settings and network profiles. Users no longer need special cables, as modern technologies allow for the creation of a stable communication channel without a physical connection.
The main difficulty many people face is choosing the right network type and setting access rights to shared resources. If you plan to connect devices regularly, it's important to understand the basic principles of protocol operation. TCP/IP and local discovery mechanisms. In this article, we'll walk you through a step-by-step process that will help you avoid common mistakes and ensure reliable communication between your devices.
There are several connection scenarios: via an existing home network with a router or by creating a direct computer-to-computer (Ad-Hoc) connection. The choice of a specific method depends on the availability of an active internet connection and equipment. A direct connection without a router requires creating a temporary network on one of the laptops, to which the second device will connect. Let's look at both options in detail, starting with the classic router scheme.
Checking network settings and computer names
Before starting any manipulations, you must ensure that both devices are on equal terms and correctly identify each other within the local network. The first step is to check the computer names, as they must be unique, otherwise an addressing conflict will occur. To do this, open Settings → System → About and look at the "Device Name" field.
The second critical point is the network profile type. Windows 10 may install the "Public" profile by default, which hides your computer from other devices for security purposes. You need to switch it to a "Private" network to enable discovery.
To complete this task:
- 🔌 Click the Wi-Fi icon in the tray and select "Properties" for your current network.
- 🔒 In the "Network Profile" section, select the "Private" option.
- ✅ Repeat this procedure on the second laptop.
It's also worth checking if network discovery is enabled. Go to Control Panel → Network and Sharing Center → Change advanced sharing settingsMake sure that "Turn on network discovery" and "Turn on file and printer sharing" are enabled in the "Private" profile.
⚠️ Warning: If you are in a public place (cafe, airport), do not switch your profile to "Private", as this will make your files visible to strangers on the same network.
After making changes, the system may require a reboot of network services or the device itself. Make sure both laptops are running the same protocol, for example, SMB 1.0/CIFS, although for Windows 10, newer versions of the default protocol are usually sufficient.
Creating a local network via a router
This is the most stable and common method, requiring a working Wi-Fi router. Both laptops must be connected to the same wireless network. In this case, the router acts as a manager, distributing IP addresses to each participant.
To make sure the devices can see each other, you can use the command line. Open the terminal (press Win + R, enter cmd) and enter the command ipconfigFind the line "IPv4 Address." On the second computer, try pinging this address.
If the connection is established correctly, you will see a response from the remote host. Otherwise, the problem may lie in the Windows Firewall settings. Sometimes antivirus software blocks incoming connections, considering them suspicious.
Basic steps for verification:
- 📡 Make sure both laptops are connected to the same SSID (Wi-Fi network name).
- 🔢 Compare the first three digits of the IP addresses (e.g. 192.168.1.xxx) - they should match.
- 🛡️ Check if your antivirus is blocking local data exchange.
In some cases, resetting network settings can help. To do this, run the following command in the command prompt with administrator rights: netsh winsock resetAfter this, a system reboot will be required.
Organizing a direct connection (Ad-Hoc network)
If you don't have a router handy, Windows 10 lets you create a makeshift network directly between two devices. This technology is known as Ad-Hoc. One laptop acts as an access point, and the other connects to it as a client.
To implement this method on the first laptop (which will “distribute” the network), go to Settings → Network & Internet → Mobile HotspotHere you need to select the connection source (in this case, Wi-Fi) and set the network name and password.
Turn on the "Mobile Hotspot" switch. The hotspot you created will now appear in the list of available Wi-Fi networks on the second laptop. Connect to it using the password you specified.
⚠️ Please note: When using a mobile hotspot, the first laptop may limit the data transfer speed or the number of connected devices depending on the wireless adapter drivers.
After a successful connection, the system will automatically detect the network as private. Now you can proceed to setting up shared access. It's important to understand that in Ad-Hoc mode, the internet on the second laptop may not work unless the "Allow other network users to connect through my internet connection" option is enabled in the adapter properties on the first laptop.
Advanced users can create a network via the command line. This gives them more control over channel parameters.
netsh wlan set hostednetwork mode=allow ssid=MyNetwork key=MyPassword
netsh wlan start hostednetwork
This command will create a virtual adapter that will be visible to other devices. To stop the network, use the command netsh wlan stop hostednetwork.
☑️ Preparing for a direct connection
Setting up shared access to files and folders
Once the physical and logical connection is established, you need to grant read and write permissions. Simply opening the "C" drive on another computer is not possible for security reasons.
Select the folder you want to share. Right-click it, select "Properties," and go to the "Sharing" tab. Click the "Advanced" button and check the "Share this folder" box.
Next, you need to set permissions. Click the "Permissions" button and make sure the "Everyone" group has the necessary permissions (usually "Read" is sufficient, but for full functionality, it's better to grant "Full Control" if you trust the second user).
An important detail: Windows 10 also has a “Shared Folders” feature, which is located along the path C:\Users\PublicAnything you place in this directory will automatically become available to other users on your local network if the appropriate option is enabled in the Network and Sharing Center.
| Access type | Level of rights | Recommended use | Security |
|---|---|---|---|
| Base | Reading | View photos and documents | High |
| Extended | Change | Collaborating on projects | Average |
| Full | Full access | Remote file management | Low |
| Special | For selected only | Confidential data | Maximum |
To access resources on another computer, open Explorer and enter in the address bar \\ComputerName or IP addressThe system may ask for a login and password. You must enter the credentials for the computer you are connecting to.
What should I do if Windows requires a password and I don't have one?
If the target computer doesn't have a logon password, Windows may block access for security reasons. Solution: Either set a password for the account or disable the password requirement in the registry (ProtectWithPassword key), but this will reduce system security.
Using Nearby Sharing
Newer Windows 10 builds (starting with version 1803) introduced a convenient "Nearby Share" feature, similar to AirDrop in the Apple ecosystem. This method is ideal for quickly transferring individual files without creating complex network structures.
For this feature to work, Bluetooth and Wi-Fi must be enabled on both laptops. The technology uses Bluetooth to discover devices and Wi-Fi Direct for fast data transfer. This eliminates the need to enter IP addresses or set up shared folders.
You can activate the function in the menu Settings → System → General FeaturesMake sure the Nearby Sharing toggle is turned on and select "Everyone around" or "My devices only" visibility.
The transfer process is simple:
- 📂 Right-click on the file and select "Share".
- 📡 In the window that opens, select the name of the second laptop from the list of available ones.
- 📥 A notification about a transfer request will appear on the second device, which you will need to confirm.
The transfer speed in this mode can vary from 5 to 20 MB/s depending on the distance and interference, which is significantly faster than classic Bluetooth, but slower than via a cable or a configured LAN network.
⚠️ Note: Nearby Sharing may not work correctly if one of the devices has older Bluetooth drivers or if the devices are more than 10 meters apart.
Troubleshooting common problems and errors
Despite its apparent simplicity, users often encounter a situation where computers cannot see each other. One of the most common causes is the Function Discovery Resource Publication (FDP) service. By default, it may be disabled in Windows 10.
To correct, click Win + R, enter services.mscFind the services starting with "Function Discovery" in the list. You need two: "Function Discovery Provider Host" and "Function Discovery Resource Publication." Set the startup type for both to "Automatic" and click "Start."
Another common issue is different time zones or time desynchronization. Security protocols can block the connection if the time on the devices differs by more than 5 minutes. Make sure both laptops are set to update the time automatically.
Drivers are also worth mentioning. An outdated Wi-Fi adapter driver may not support the operating modes required to create a network or maintain a stable connection. Visit the laptop manufacturer's website and download the latest software for your wireless card model.
If nothing helps, try resetting the TCP/IP stack with the command netsh int ip reset in the command prompt with administrator rights. This will reset the network settings to factory defaults.
Why can't the second laptop see the first one, even though the network is shared?
Most likely, the firewall settings on the first laptop block incoming traffic for the "Private" network type, or network discovery is disabled. Also, check whether a third-party antivirus (Kaspersky, ESET, Avast), which has its own built-in firewall, is blocking the connection.
What is the maximum file transfer speed over Wi-Fi?
With the Wi-Fi 5 (802.11ac) standard, actual local network speeds are typically 40-60 Mbps. With the Wi-Fi 6 (802.11ax) standard, speeds can reach 100 Mbps and higher, comparable to fast Ethernet, but are highly dependent on the distance from the router and the amount of interference.
Is it possible to connect laptops if one is on Windows 10 and the other is on Windows 11?
Yes, absolutely. SMB protocols and network discovery mechanisms are fully compatible between these operating system versions. The setup algorithm will be identical.