Today's digital landscape is rarely limited to a single device. Users often need to quickly transfer gigabytes of data, launch a game from one screen to another, or simply access files on a desktop PC while sitting in another room with a laptop. Local area network, built using a wireless protocol, solves these problems elegantly, eliminating the need to search for flash drives or run long cables across the entire apartment.
The process of creating such a connection is based on the presence of a working Wi-Fi router, to which both devices are connected. This could be a home network or a corporate office infrastructure. The main requirement is that both devices must be on the same network segment, meaning they must be connected to the same router, even if one of them uses a wired connection (although this article is specifically about Wi-Fi, hybrid options are also possible).
In this article, we'll cover not only the basic configuration of device visibility, but also security nuances and methods for optimizing data transfer speeds. You'll learn how to avoid common mistakes when computers don't "see" each other, and how to organize an effective file sharing Without third-party software. This knowledge will transform your home network into a powerful tool for work and entertainment.
Checking basic requirements and preparing equipment
Before delving into the depths of Windows settings, you need to ensure the physical infrastructure is ready. The foundation of the entire system is routerIf your router is older and only supports the 802.11g standard, file transfer speeds will be uncomfortably slow, often not exceeding 2-3 MB/s. For a comfortable experience, it's advisable to support these standards. 802.11n or 802.11ac (Wi-Fi 5), and ideally Wi-Fi 6.
Both devices must be connected to the same network. This seems obvious, but a common mistake is connecting one device to the guest network (Guest Network), and the other to the main network. Guest networks typically have client isolation, which technically prevents data exchange between connected devices. Also, make sure both computers have up-to-date drivers for the wireless adapter.
⚠️ Important: If you're using a corporate network or a complex router with VLANs, ensure that security policies don't block SMB protocols used for file sharing. Such restrictions are rare on home networks.
Check the connection status on each device. In Windows, this can be done through the Network and Sharing Center. The network type should be set to "Private," not "Public." By default, the system hides the computer from other network members for security reasons, making any further settings useless.
Setting up a network profile and discovering devices
The first step to a successful connection is for the operating system to correctly classify the network. When you connect to Wi-Fi for the first time, Windows asks if you want to make this computer discoverable. If you answer "No" or skip this step, the system assigns the profile status as "Public Network." This blocks incoming connections.
To fix this, open the network settings in Windows 10 or 11. Go to the section Settings → Network and Internet → Wi-FiClick on the name of your active network (or the connection properties). In the menu that opens, select the "Private" profile. This will allow your computer to respond to discovery requests and be visible to other devices on the local network.
After changing your profile, you need to activate the sharing features. Go to Control Panel → Network and Sharing Center → Change advanced sharing settingsHere it is critical to enable the following options for the current profile:
- 🔍 Enable network discovery (and automatic configuration of connected devices).
- 📂 Enable file and printer sharing.
- 🔐 Allow Windows to manage HomeGroup connections (if applicable).
It's important to note that changes may not take effect immediately. Sometimes you may need to reboot your network adapter or completely reconnect to Wi-Fi. If you're using a third-party antivirus or firewall, check their settings—they may block local connections, considering them suspicious, even if your Windows settings are correct.
Organizing shared access to folders and files
Once the devices have "discovered" each other, you need to grant read or write permissions to specific data. Simply enabling network discovery isn't enough—you must explicitly specify which resource to share. Find the folder you plan to share, right-click it, and select "Properties."
In the window that opens, go to the "Access" tab and click the "Sharing..." button. Select a user (e.g., "Everyone" or a specific account name) from the drop-down list and click "Add." You can also set the permission level here: "Read" will only allow viewing and copying files, while "Read and Write" will give you full control over the folder's contents from another device.
| Access level | Remote user capabilities | Recommended use |
|---|---|---|
| Reading | Viewing, copying, and running files | Media libraries, document archives |
| Reading and writing | All of the above + deletion and modification | Working folders, file sharing during work |
| Owners | Full control, including changing access rights | System administrators, PC owners |
There's also an advanced configuration method via the "Security" tab. If you receive a "No access rights" error when attempting to access the file from another computer, check whether the "Everyone" user or group is added to the permissions list on this tab. It's often the case that sharing is enabled, but NTFS permissions (file system permissions) are blocking access.
☑️ Access setup checklist
Connecting to network resources and mapping disks
Once the folder is shared, it's time to connect to it from your laptop. The easiest way to find a computer on the network is to use Network Places. Open File Explorer and select "Network" in the left pane. If the computer doesn't show up immediately, try entering its IP address or name manually in File Explorer's address bar.
To find out the IP address of the target computer (the one to whose folders we are connecting), click Win + R, enter cmd and in the command line type ipconfigWe are interested in the "IPv4 address" string, which usually looks like this 192.168.1.X or 192.168.0.XIn your laptop's Explorer, enter the following in the address bar: \\192.168.1.X (substituting real numbers).
When you first connect, the system may ask for your credentials. It is important to enter the login and password for the account you are logged in with. server computer (where the files are stored), not on the laptop. If the account doesn't have a password, Windows may block access for security reasons. In this case, it's best to create a password or change the security policy (which is less secure).
To avoid entering the path each time, you can map the network folder as a separate drive. In File Explorer, right-click "This PC" and select "Map network drive." Select a drive letter (e.g., Z:), enter the path to the folder, and check "Restore at logon." The deleted folder will now appear as a regular local drive.
⚠️ Note: A dynamic IP address (DHCP) may change after a router reboot. If you configured disk mapping and it stops working, check if the target computer's IP address has changed. For permanent connections, it's best to reserve an IP address in the router settings.
Using built-in remote control tools
Connecting a computer and laptop isn't just about transferring files. You often need to control one device from the other, for example, running heavy tasks on a powerful PC while sitting on the couch with a laptop. Windows has a built-in tool Remote Desktop (Remote Desktop), which works over the local network at high speed.
To use this feature, you need to allow remote connections on the target computer (the one you will be connecting to). Go to System → Remote Desktop Settings and toggle the switch to the "On" position. Please note that this feature is only available in Windows Pro and higher; in the Home edition, a computer can only be a client, not a server.
To connect from a laptop, launch the Remote Desktop Connection app (found in the Start menu search). Enter the computer name or IP address. After entering your credentials, you'll see the remote PC's desktop in your laptop's window. This is ideal for administration or working with programs that require the resources of a desktop computer.
Alternatives to built-in RDP
If you have a Windows Home system or need cross-platform support, consider TeamViewer, AnyDesk, or Chrome Remote Desktop. They're easier to set up online, but they can have latency issues over a local network compared to native RDP.
Troubleshooting and Speed Optimization
Even with proper configuration, problems can still arise. The most common is "Windows cannot access..." In 90% of cases, this is due to ports being blocked by an antivirus or network profile mismatches (one device in "Public" and the other in "Private"). It's also worth checking the "Function Discovery Resource Publication" service—it should be running and running automatically.
Wi-Fi data transfer speeds vary greatly depending on the frequency band. If your router is dual-band, make sure both devices are connected to the network. 5 GHzThe 2.4 GHz band is heavily noisy and rarely delivers real-world speeds above 3-4 MB/s, which is critically low for transferring large amounts of data. 5 GHz allows for speeds of 20-50 MB/s and higher, comparable to fast USB drives.
To diagnose speed, you can use the built-in resource monitoring utility. Click Win + R, enter resmon and go to the "Network" tab. There you can see the actual activity of your network adapters in real time. This will help you understand whether the bottleneck is limited by the speed of the disk, the processor, or the wireless channel itself.
Frequently Asked Questions (FAQ)
Is it possible to connect a computer and laptop directly via Wi-Fi without a router?
Yes, it's possible. Windows 10 and 11 have a "Mobile Hotspot" feature that allows you to share Wi-Fi from one device, or you can create a computer-to-computer (Ad-hoc) network. However, this is less convenient, as one device must constantly act as an access point, which may limit its functionality.
Why does it ask for a password when connecting, even though I didn’t set one?
In modern versions of Windows, the default security policy prevents network logon with a blank password. You will need to either set a password on the user account or disable the password requirement in the Local Security Policy Editor (available in Pro versions) under "Local Policies → Security Options → Accounts: Status of the setting "Accounts: Restrict local use of blank passwords to console logon only."
Will file transfer work if one device is running Windows 10 and the other is running Windows 7?
Yes, it will. However, Windows 7 uses the older SMBv1 protocol by default, which is disabled in Windows 10/11 due to vulnerabilities. You will need to either enable SMBv1 support on the new computer (not recommended for security reasons) or upgrade the SMB protocol on Windows 7 to version 2/3 by installing the appropriate updates.
How to increase file copying speed over Wi-Fi?
Make sure both devices are operating in the 5 GHz band. Close any background programs that consume bandwidth (torrents, streaming). If your router supports it, enable MU-MIMO mode. Speed may also be limited by disk write speed—if you're copying many small files, the speed will always be lower than transferring a single large file.