Organizing local data exchange between devices on a home network is no longer the preserve of system administrators at large companies. In today's world, when every user has a laptop, desktop PC, tablet, or Smart TV, the need to quickly transfer movies, photos, or documents has become a daily task. Flash drives are becoming a thing of the past, giving way to wireless technologies that allow you to instantly exchange gigabytes of information without leaving your couch. Windows 10 provides powerful built-in tools for creating such exchange points, but the default security settings often block connection attempts out of the box.
The main difficulty users encounter when trying to share a folder over Wi-Fi isn't the lack of a button, but rather the operating system's built-in security system. By default, Microsoft closes ports and hides your computer from detection by other devices to protect your personal data from potential threats on public networks. To turn your laptop into a full-fledged media server or file storage for other devices in your home, you need to perform a series of steps to change network profile settings and access rights.
In this guide, we'll walk you through the setup process in detail, eliminating unnecessary steps and focusing on working methods that are relevant for the latest operating system updates. You'll learn how to set it up correctly. SMB protocol, manage user rights, and troubleshoot common connection errors that may arise along the way. Understanding these principles will help you create a stable work and play environment where all your devices can see each other without unnecessary fuss.
Checking network settings and connection profile
The first and most critical step is determining the network profile type assigned by your operating system to your current Wi-Fi connection. Windows 10 automatically classifies new networks as "Public," which provides the highest level of protection: the computer becomes invisible to other devices, and discovery features are blocked. To enable local file sharing, you must force the network status to "Private," which signals the system to trust surrounding devices.
To do this, open the Start menu and go to the "Settings" section, indicated by a gear. In the window that opens, select "Network & Internet," then click "Wi-Fi" in the side menu. Here you'll see the name of your active wireless network; click it to open the connection properties. In the "Network Profile" section, change the switch from "Public" to "Private." This will allow your computer to respond to discovery requests and make it visible in the list of available devices.
After changing the profile, ensure that all devices that need to access your files are connected to the same wireless network. Users often encounter a situation where the router broadcasts on two frequencies (2.4 GHz and 5 GHz), and devices end up on different subnets, which can prevent them from discovering each other despite the correct profile. Ensure that the devices' IP addresses are in the same range, for example, 192.168.1.X.
Setting up sharing options
Once the network profile has been changed, the corresponding features must be enabled in the Network and Sharing Center. These settings dictate how the operating system should respond to external file and printer requests. Ignoring this step is the most common reason why folders remain inaccessible to other users, even with the correct profile.
Open the Control Panel (you can find it by searching in the Start menu) and go to Network and Sharing Center. In the left column, select Change advanced sharing settings. A list of profiles will open; make sure you're in the Private (current profile) section. Here, you need to enable the following options:
- 🔘 Enable network discovery - allows other computers to see your PC in the list of available devices.
- 🔘 Enable file and printer sharing — allows access to shared resources.
- 🔘 Let Windows manage HomeGroup connections — automatically configures the necessary ports.
Next, scroll down to the "All Networks" section. This is a critical security setting. The "Password-protected sharing" option is enabled by default, requiring you to enter your Windows user account login and password every time you connect from another device. If you're setting up a network for personal use in a trusted environment (like at home), you can disable this feature so access is automatic without entering credentials. However, in offices or other busy settings, leaving password protection enabled is a requirement.
⚠️ Caution: Disabling password protection allows access to your shared folders to anyone who connects to your Wi-Fi network. Make sure your wireless network is protected with strong WPA2/WPA3 encryption.
Be sure to click the "Save Changes" button at the bottom of the page, otherwise all changes will not take effect. The system may require administrator privileges to make these changes. After saving the settings, we recommend restarting your computer to allow network services to fully update their configurations.
Creating and sharing a folder
Now that the foundation has been laid, you can begin configuring access to a specific directory. You can create a new sharing folder or use an existing one. Avoid granting access to system directories or folders containing sensitive financial information.
Right-click the folder you want to share and select "Properties." Go to the "Sharing" tab and click "Advanced." In the window that opens, check the box next to "Share this folder." Below that, a "Permissions" button will appear, allowing you to fine-tune permissions for different user groups.
In the permissions window, you'll see a list of groups. By default, only the creator can be present. To ensure access from all devices on the local network, add the "Everyone" group (or Everyone (in the English version). Select this group and check the boxes in the "Allow" column at the bottom of the window:
- 📄 Full access - allows you to read, modify, delete files and create new folders.
- 📄 Modify - Allows editing and deletion, but does not allow changing the permission structure.
- 📄 Read - the user can only view and copy files, but cannot modify them.
After setting the permissions, click "OK" and "Apply." However, that's not all. There's a second level of access via the "Security" tab in the folder's properties. If the NTFS file system permissions don't allow access, the settings in the "Access" tab may not work. Go to the "Security" tab, click "Edit," then "Add," and enter All (or Everyone) and click "Check Names," then "OK." Make sure the read and execute checkboxes are checked for this group.
Setting up a firewall and exceptions
Even with the correct access settings, the built-in Windows Defender firewall may block incoming connections, considering them potentially dangerous. This is especially true for the SMB (Server Message Block) protocol, which is used for file sharing. If you've followed all the previous steps but the connection fails or times out, the problem almost certainly lies in your traffic filtering rules.
To check and configure, open the search bar and type "Windows Defender Firewall." Select "Advanced settings" from the left menu. In the window that opens, select "Inbound Rules." In the list of rules, find the group associated with "File and Printer Sharing." Make sure the rules for the "Private" and "Domain" profiles are enabled (green indicator). If they are disabled, right-click and select "Enable Rule."
It's also worth checking whether your third-party antivirus software is blocking network communication. Many popular antivirus suites (Kaspersky, ESET, Avast) have their own firewall modules that override Windows settings. Temporarily disable your antivirus's firewall for diagnostic purposes. If access is restored after this, you'll need to add your local network to the trusted list in your antivirus settings.
| Port | Protocol | Purpose | Status |
|---|---|---|---|
| 445 | TCP | SMB Direct (primary) | Must be open |
| 139 | TCP | NetBIOS Session | Desirable |
| 137 | UDP | NetBIOS Name Service | For detection |
| 138 | UDP | NetBIOS Datagram | For detection |
Connecting to a shared folder from other devices
Once the server (your Windows 10 PC) has been successfully configured, you can connect the client devices. The connection method depends on the operating system of the device you want to access the files from. The basic principle is to use a network address. You'll need to know the IP address of the computer where the shared folder is located, or its network name.
You can find out the IP address by running the command line (cmd) and entering the command ipconfigFind the "IPv4 Address" line for your wireless adapter. On another Windows computer, open File Explorer and enter [IPv4 Address] in the address bar. \\192.168.1.X (where X is your IP) and press Enter. If everything is configured correctly, a window will open with a list of available folders.
To connect from Android or iOS, it is most convenient to use file managers with SMB support, for example, CX File Explorer, Solid Explorer Or the built-in Files app on iOS. In the app, select "New Connection" → "SMB/LAN." The app will automatically scan the network and find your computer. If the automatic search doesn't work, enter the IP address manually. Guest access allows you to log in without a password if you've disabled password protection; otherwise, you'll need to enter the username and password for your primary PC's Windows account.
☑️ Connection checklist
Solving typical problems and errors
Despite its apparent simplicity, the setup process can encounter a number of technical obstacles. One common issue is the error "Windows cannot access...," which is often accompanied by error code 0x80070035 ("The network path was not found"). This may indicate that the services responsible for discovery have stopped.
Check the status of services. Click Win + R, enter services.msc and find the following services:
- 🛠️ Publishing function discovery resources - must be running.
- 🛠️ Function Discovery Provider Host - must be running.
- 🛠️ SSDP Discovery Service - must be running (for UPnP devices).
If services are running but you still can't access your network, try resetting your network settings. Go to Settings → Network & Internet → Status → Reset Network. This will reinstall your network adapters and reset your settings to factory defaults. You'll need to repeat the access setup process again, but this often resolves issues with stuck network configurations.
⚠️ Note: Operating system and router interfaces are subject to update. The location of menu items or parameter names in newer versions of Windows 10/11 or router firmware may differ from those described. Always consult the manufacturer's official documentation if the default paths don't work.
Another common issue is a conflict between SMB protocol versions. Older devices (such as some TVs or NAS storage devices) may not support SMB v2/v3, which are enabled by default in Windows 10, requiring the legacy SMB v1 protocol to be enabled. Enabling it is highly discouraged due to security vulnerabilities, but in isolated home networks, it is sometimes the only option. This can be done via Control Panel → Programs and Features → Turn Windows features on or off → Enable SMB 1.0/CIFS file sharing support.
Questions and Answers (FAQ)
Why is my computer not visible in the network neighborhood, although all the settings are correct?
This is often due to a disabled discovery service or specific features of the SMB protocol in newer versions of Windows. Try entering the computer's IP address directly into the address bar of File Explorer (\\192.168.x.x). Also, make sure that the Computer Browser service is enabled on both devices, although its role is deprecated in Windows 10.
Is it possible to access Windows 10 folder from phone without installing third-party apps?
On Android, this is difficult to do using standard tools; a file manager is required. On iOS, the Files app has built-in support for connecting to SMB servers. On some Smart TVs, this feature may be integrated into the media player. However, for a full-featured experience, it's often more convenient to use specialized client apps.
Is it safe to leave sharing enabled all the time?
If you're on a home network with a strong Wi-Fi password and have disabled password protection only for local addresses, the risk is minimal. However, if you occasionally connect to public Wi-Fi (such as cafes or airports), be sure to switch the network profile to "Public" to hide your folders from prying eyes.
How do I remove access to a folder if I no longer need it?
Return to the folder properties, click the "Sharing" tab, click "Advanced" and uncheck "Share this folder." Also, don't forget to go to the "Security" tab and remove the "Everyone" group or a specific user from the list to remove file system-level permissions.
Why does it ask for a password when connecting, even though I have disabled password protection?
Windows may be caching old credentials. Try clicking "Choose another user" in the password entry window and entering your login information. Guest (or Guest) without a password. Clearing saved passwords in Control Panel → Credential Manager → Windows Credentials will also help.