In today's digital world, the need to quickly transfer large amounts of data between devices is constant, and cloud storage isn't always convenient due to speed or traffic limitations. Creating a local wireless network allows for a direct connection between computers, ensuring high-speed file copying and access to shared resources without the need for external servers. This method is especially useful for office work, where printers or databases need to be shared, and for home use with multimedia systems.
Synchronize two laptops via wireless connection Wi-Fi — is a process that requires proper configuration of network discovery settings and security protocols on both devices. Despite the apparent complexity, operating systems of the family Windows have built-in tools for this task, eliminating the need to install third-party software. Understanding the principles of a local network will help you not only transfer files but also organize effective communication between devices within a single security perimeter.
Before starting the procedure, you need to make sure that both laptops are connected to the same wireless network access point, be it a home router or a mobile hotspot. A critical requirement is that both devices be assigned static IP addresses in the same subnet or that the router's DHCP server is functioning correctly so that the devices can "see" each other. If you are using a guest network in a cafe or hotel, synchronization may not be possible due to the isolation of client devices at the provider's equipment level.
Preparing equipment and checking network parameters
The first step is to thoroughly diagnose the current network connection status on both laptops. Open the command prompt by typing cmd in the Start menu and enter the command ipconfig to obtain information about the current IP address, subnet mask, and default gateway. Record this information, as you will need it to verify that devices are on the same logical network.
Make sure the network type in Windows settings is set to "Private" and not "Public." When set to "Public," the system automatically blocks network discovery for security reasons, preventing direct data exchange between your laptops. You can switch profiles in the network and internet settings menu under "Status" or "Properties" for your active Wi-Fi connection.
⚠️ Attention: If you're on a corporate network with a strict security policy, attempts to change sharing settings may be blocked by the system administrator or antivirus software. In this case, coordinate your actions with the IT department to avoid any information security breaches.
Check the visibility of devices by running the command ping from one laptop to the IP address of the second. For example, if the address of the second laptop 192.168.1.50, enter ping 192.168.1.50A successful response ("Reply from...") confirms physical and logical connectivity, allowing you to proceed to programmatic sharing configuration.
Setting up network discovery and sharing
To enable laptops to see each other in a network environment, you need to enable the appropriate features in the Control Panel. Follow the path Control Panel → Network and Internet → Network and Sharing Center → Change advanced sharing settingsHere you will see a list of profiles where you need to make changes.
In the "Private" section (current profile), enable "Turn on network discovery" and check "Turn on network discovery of devices connected to the network." Also, enable "Turn on file and printer sharing." This will allow the operating system to broadcast your computer's presence on the local network and respond to requests from other devices.
At the bottom of the window, find the "All Networks" section. It's recommended to enable "Password-protected sharing" here if you want to control who has access to your data. If your laptops are in a completely trusted home environment and convenience is a priority over security, you can disable protection, but this isn't recommended for devices connecting to public Wi-Fi networks.
Save your changes by clicking the "Save Changes" button. The system is now ready to provision resources, but the folders or drives themselves are not yet accessible. This step merely lays the groundwork for further data synchronization.
Creating a shared folder and setting access rights
Select the folder you want to share with the second laptop, or create a new one, such as "Exchange." Right-click it and select "Properties," then go to the "Sharing" tab. Click "Advanced" for detailed permissions.
In the window that opens, check the "Share this folder" box. Below, click "Permissions" to determine what actions users on the other laptop can perform. By default, the "Everyone" group may have read-only permissions, meaning they can't write or modify files remotely.
- 📁 Full access: Allows users from another laptop to read, write, modify, and delete files in the shared folder.
- 📝 Change: gives the right to read, write and delete files, but not to change the access parameters of the folder itself.
- 👁️ Reading: Users can only open and copy files, but cannot make changes or create new ones.
Don't forget to also go to the "Security" tab in the folder properties. The appropriate permissions should be defined here for the "Users" group or a specific user. If there aren't any, click "Edit" → "Add," enter the username or the word "Everyone," and confirm by granting the necessary permissions from the list below.
⚠️ Attention: When granting full access rights, ensure the receiving laptop is free of malware. Ransomware can spread quickly across a shared network and encrypt files on both devices.
☑️ Checking folder settings
Connecting to a network resource and mapping a disk
After setting up access on the first laptop, go to the second device. Open File Explorer and enter the IP address of the first laptop in the address bar in the format \\192.168.1.X (where X is the last digit of the IP address). If all settings are correct, you will see an open folder.
The system may prompt you for credentials. Enter the username and password for the first laptop (the one you're currently logged into Windows with). If the username and password are identical on both devices, you may be logged in automatically.
For ease of continuous use, we recommend mapping the shared folder as a network drive. To do this, right-click "This PC" in File Explorer and select "Map network drive." Select an available drive letter (e.g., Z:) and enter the path to the resource in the "Folder" field or browse to find it.
| Parameter | Description | Recommended value |
|---|---|---|
| Drive letter | Logical designation in the system | Z, Y, X (free) |
| Path | Network resource address | \\IP address\Folder name |
| Recovery | Automatic connection upon login | Enabled (check mark) |
| Other data | Using other credentials | As needed |
Check "Reconnect at logon" to make the drive appear automatically after each laptop reboot. This will eliminate the need to re-enter the network share path each time.
Using OneDrive's built-in sync tools
An alternative and often easier way to sync files between two laptops is to use a cloud service. OneDrive, integrated into Windows 10 and 11. This method does not require local network configuration, IP addresses, or access rights, as data exchange occurs through Microsoft Internet servers.
To use this method, sign in to the same Microsoft account on both laptops. Files placed in the OneDrive folder on the first device are automatically uploaded to the cloud and then downloaded to the second laptop. This ensures that your data is up-to-date in real time across all devices.
However, this approach has its limitations. Sync speed depends on your internet connection speed, not your Wi-Fi router's. Furthermore, the amount of data synced is limited by your account's data plan, while a local network is limited only by the capacity of its hard drives.
What's the difference between local sync and OneDrive?
Local synchronization works offline, transfers large files (videos, disk images) faster, and doesn't take up cloud storage. OneDrive is more convenient for working on the go and provides backup in case of hardware failure.
If you need to sync small work documents and frequently change locations, the cloud may be preferable. For transferring movie archives or system backups, a local Wi-Fi network remains the undisputed leader in efficiency.
Solving common access problems and errors
Despite the correct settings, users often encounter access errors such as "Windows cannot access..." or "You don't have permission to access this object." Most often, the problem lies with firewall settings or Windows services.
Check if the Function Discovery Resource Publication service is enabled. Click Win + R, enter services.msc, find the service in the list, double-click it, and select the startup type as "Automatic," then click "Start." This service is responsible for registering the computer on the network.
- 🔒 Firewall: Make sure your firewall rules allow incoming connections for File and Printer Sharing.
- 📡 Wi-Fi Drivers: Outdated wireless adapter drivers may not work correctly with multicast traffic required for discovery.
- 🔑 Password: Make sure the account password isn't blank. Windows prevents network access for accounts without a password by default.
It's also worth paying attention to your antivirus software. Third-party antivirus programs (Kaspersky, ESET, Avast, etc.) often have their own built-in firewall that blocks local connections, ignoring Windows settings. Try temporarily disabling network protection in your antivirus for diagnostic purposes.
⚠️ Attention: Windows settings interfaces and service names may vary slightly depending on the operating system version (Home, Pro, Enterprise) and installed updates. If you can't find the item, search for it in the system settings.
What to do if laptops see the network, but do not see each other?
Try disabling IPv6 in the network adapter properties on both laptops. Sometimes protocol version conflicts can prevent proper detection on small local area networks.
Frequently Asked Questions (FAQ)
Is it possible to sync laptops running different versions of Windows (e.g. 10 and 11)?
Yes, operating system versions don't matter as long as the SMB (Server Message Block) protocol is enabled on both devices. Windows 10 and 11 use SMB by default, so they work seamlessly together on the same local network.
What is the maximum data transfer speed when syncing via Wi-Fi?
Speed depends on the Wi-Fi router standard and adapters. For 802.11n (Wi-Fi 4), actual speeds will be around 20-40 Mbps, for 802.11ac (Wi-Fi 5), up to 400-500 Mbps, and Wi-Fi 6 can deliver speeds close to a gigabit wired connection, provided the signal is strong.
Is internet required for a local network to work between laptops?
No, internet access is not required. The local network operates between devices directly through the router. Even if you disconnect the ISP cable from the router, file transfers between laptops will continue as long as the Wi-Fi/LAN indicator is lit.
Is it safe to keep sharing enabled all the time?
On a home network with a strong Wi-Fi password, this is safe. However, in public places (cafes, hotels), leaving Wi-Fi sharing enabled is strongly discouraged, as hackers on the same network may attempt to access your files.