Modern data management requires flexibility, and the need to use physical media such as flash drives or external hard drives is gradually becoming a thing of the past. Local area networkBuilt on a wireless connection, it allows you to instantly share documents, photos, and videos between devices. This not only saves time but also eliminates the risk of data loss due to physical contact with USB ports.
Many users still don't know that the built-in tools of the operating system Windows Allows you to set up full-fledged data exchange in minutes. You don't need to download questionable software or buy additional hardware if both computers are on the same network. Simply configure access settings and shared resources correctly.
In this article, we'll take a detailed look at all current data transfer methods: from classic shared folders to advanced methods like FTP servers. We'll discuss security, transfer speed, and solutions to common device visibility issues. Data transfer speed directly depends on the router frequency: at 5 GHz it can reach 50-80 MB/s, while at 2.4 GHz it rarely exceeds 10-15 MB/s.
Basic network and hardware requirements
Before setting up the software, you need to ensure your network hardware is ready for operation. Both computers must be connected to the same router, either via Wi-Fi or an Ethernet cable. Connecting one device via cable and the other via wireless is also acceptable, as long as they are on the same network segment.
The network profile type is critical. Windows automatically assigns new connections the "Public Network" profile, which prevents other computers from discovering your device for security reasons. Private network, on the contrary, allows file discovery and sharing. You can check this in the network settings.
It's also worth considering your connection's bandwidth. If you plan to transfer gigabytes of data, make sure both devices support the standard. 802.11ac or ax (Wi-Fi 5/6) and operate in the 5 GHz band. Older standards can become a bottleneck, turning the copying process into a long wait.
- 📶 Both computers are connected to the same router (same subnet).
- 🔒 Network profile is set to "Private".
- ⚡ It is advisable to use the 5 GHz band for high speed.
- 🔌 Stable power supply for devices during transmission.
⚠️ Attention: If you're in a public place (cafe, airport), never enable network discovery. In public places, use only encrypted cloud storage or a VPN, as your local network may be open to attack.
Setting up sharing in Windows 10 and 11
Properly configured sharing settings are the foundation for file sharing. In Windows operating systems, these settings are scattered across various menus, but activating them is a mandatory step. Open Control Panel, go to Network and Internet, then Network and Sharing Center.
In the left pane of the window, select "Change advanced sharing settings." Here you'll see profiles for different network types. Make sure "Turn on network discovery" and "Turn on file and printer sharing" are enabled in the "Private" section. This will allow computers to "see" each other.
Below, in the "All Networks" section, check the "Password-protected sharing" setting. If you're at home and want easier access, you can disable this setting, but this will reduce security. With password protection enabled, you'll be prompted to enter the username and password of the user account on the receiving computer each time you connect. Account must have a password, otherwise access may be denied by security policies.
☑️ Check network settings
After making changes, be sure to click "Save Changes." The system may require a restart of network services or the computer itself for the new rules to apply. If the computers still can't see each other, check the Windows services, specifically "Function Discovery Resource Publishing" and "Function Discovery Provider Host"—they should be running.
Creating and sharing a folder
Once the network foundation is established, you need to create a location for the files to be retrieved. You can share any existing folder or create a new one specifically for sharing. Right-click the folder, select "Properties," and go to the "Sharing" tab.
Click the "Sharing" button. In the window that opens, select "Everyone" (or a specific user if you haven't disabled password protection) and click "Add." Set the permission level: "Read" will only allow copying files from this PC, while "Read and Write" will allow downloading files to this computer from other devices.
For more granular control over permissions, you can use the "Advanced Settings" button on the "Access" tab. Here you can set concurrent user limits and fine-tune permissions for different groups. It's also helpful to go to the "Security" tab and ensure that the "Everyone" group or a specific user has read and write permissions in the NTFS permissions list.
Problem with access rights
If you get an "Access Denied" error when opening a folder from another PC, there's likely a conflict between NTFS and share permissions. Go to the "Security" -> "Advanced" tab and make sure permission inheritance is enabled or permissions are explicitly assigned to the "Everyone" user.
To find out the path to the shared folder, copy it from the address bar of the Properties window or use the network path in the format \\ComputerName\FolderNameThis path can be sent to another user, and they will be able to immediately access the files.
Connecting a network drive and working with files
For ease of use, it's best to map the network folder as a separate drive. This will eliminate the need to search for the computer in your network neighborhood each time. Open "This PC," right-click an empty space, and select "Map network drive."
In the window that opens, select any available drive letter (e.g., Z:). In the "Folder" field, enter the path to the resource in the format \\IP address\Folder or \\PCName\FolderUsing an IP address is often more reliable, as computer names may not be resolved by DNS on simple home networks. Check the "Reconnect at logon" box.
Now you'll see a new drive in "My Computer," which works just like a regular HDD or SSD. You can open files directly, edit them, and save your changes. However, keep in mind that response time will depend on the quality of your Wi-Fi signal.
| Parameter | Local disk (SSD) | Network Folder (Wi-Fi 5 GHz) | Network folder (Wi-Fi 2.4 GHz) |
|---|---|---|---|
| Reading speed | ~500 MB/s | ~40-60 MB/s | ~8-12 MB/s |
| Latency (Ping) | < 1 ms | 2-10 ms | 10-50 ms |
| Stability | High | Average | Low |
| Distance dependence | No | Eat | Strong |
If the connection drops or the speed drops to zero, try reconnecting the drive using the IP address instead of the computer name. Also, check whether the router is going into sleep mode or power saving mode, which is common with some models.
Alternative methods: FTP and cloud services
If the standard SMB protocol (Windows shared folders) is causing problems or is unstable, you can use an FTP server. This is a more universal method that works on all operating systems. To set up a server on a PC, you can use a free program. FileZilla Server or built-in IIS tools.
Another popular option is to use cloud storage services such as Yandex.Disk, Google Drive or DropboxBy installing the client on both computers, you get a folder synchronized over the internet. This is ideal if the computers are physically located in different locations, but it requires an active internet connection and bandwidth costs.
For fast transfer of large files without registration and setting up complex software, there are P2P services like ToffeeShare or Sharedrop.ioThey create a direct connection between the browsers of two computers using WebRTC technology. Files are not uploaded to third-party servers, guaranteeing privacy.
- 🚀 FTP server: high speed, cross-platform, complex permissions settings.
- ☁️ Clouds: access from anywhere in the world, dependent on internet speed.
- 🌐 P2P in the browser: fast for one-time transfers, no software installation required.
⚠️ Attention: When using an unencrypted FTP server (FTP protocol, not FTPS), passwords and data are transmitted in cleartext. This is acceptable in home networks, but in corporate environments, secure connections are essential.
Troubleshooting and Security Issues
The most common problem is computers not being able to see each other in a network environment. In 90% of cases, this can be resolved by checking the "Discovery Provider Host" service and ensuring the network is marked as private. Antivirus software and firewalls can also block the connection. Try temporarily disabling your third-party antivirus to test this hypothesis.
Security remains a concern when transferring files over Wi-Fi. Your router's encryption protocol should be at least WPA2-AES, and ideally - WPA3Older WEP and WPA/TKIP protocols are easily cracked, allowing for the interception of transmitted data. Ensure that the WPS function is disabled on your router, as it is a known vulnerability.
If you're transmitting sensitive data, consider password-protecting the files before sending or using encrypted archivers. This will add an extra layer of protection even if your network is compromised.
For diagnostics use the command ping in the command line. Enter ping the IP address of the second computerIf packets are being lost or response times are too high, the problem may be a poor Wi-Fi signal or congestion from neighboring routers.
Using the Command Prompt for Advanced Users
For those who prefer console control, Windows provides powerful tools. Command net share allows you to create and delete shared resources without using a graphical interface. For example, the command net share Data=C:\Data /grant:Everyone,Read will create a shared folder.
To view all active network connections and open ports, use the command netstat -anThis will help you determine whether your computer is listening for incoming connections on port 445 (the standard SMB port). If the port isn't listed, the sharing service isn't running or is blocked.
It is also useful to know the command ipconfig /all, which displays the complete network configuration status, including DNS servers and MAC addresses. This helps diagnose IP address conflicts that may be preventing communication between two PCs.
net use Z: \\192.168.1.55\Share /persistent:yes /user:Admin password123This command in the command line will map the Z: network drive to the resource by IP address, maintaining the connection after a reboot. Using the IP address here is preferable to the name to avoid name resolution issues.
How to transfer files if the computers are on different networks (via the Internet)?
To transfer files between computers in different physical locations (for example, at home and in the office), a standard local network won't work. You'll need to either use cloud services (Yandex.Disk, Google Drive) or set up a VPN (such as Tailscale or ZeroTier), which will virtually connect the devices into a single local network over the internet. Once connected, you'll be able to use the same shared folder methods as if the computers were located next to each other.
Why is the Wi-Fi copy speed very low (less than 1 MB/s)?
Slow speeds can be caused by several factors: operating in the 2.4 GHz band with a noisy environment, using the older 802.11n/g standard, or power-saving settings on your network card. Also, check if background downloads are running on other devices. Try moving closer to the router or switching to an Ethernet cable for critical data transfers.
Is it possible to transfer files between Windows and macOS/Android?
Yes, this is possible. macOS and Android support the SMB protocol. On a Mac, select "Connect to Server" in Finder and enter the address of your Windows PC. On Android, use file managers with LAN/SMB support (such as Solid Explorer or CX File Explorer). The principles of access settings remain the same: shared access on Windows and the correct permissions.