How to Install a WiFi Driver on Windows or Mac

What you need before you start

A WiFi driver is the software that lets your operating system talk to your wireless network card. If your computer connects to WiFi but the connection drops, won't turn on, or doesn't appear in your network list, a missing or outdated driver is often the cause. Before you install or reinstall a driver, you need three things: the exact model of your wireless card, the operating system version you're running, and the driver file itself from the manufacturer.

You can find your wireless card model in Windows by opening Device Manager (right-click the Start button and select it), expanding "Network adapters," and looking for anything with "Wireless" or "802.11" in the name. On Mac, click the Apple menu, select "About This Mac," then "System Report," and look under "Wi-Fi" for the model name. Write this down exactly as it appears.

Next, check your Windows version by typing "winver" into the search box, or on Mac by clicking the Apple menu and selecting "About This Mac." You need to know whether you're on Windows 10, Windows 11, or which macOS version you have. The driver file must match both your card model and your operating system version, or installation will fail.

Key Takeaways

Find your wireless card model in Device Manager on Windows or System Report on Mac before downloading anything.
read the driver directly from the manufacturer's support website using your card model and operating system version.
On Windows, use Device Manager to point to the driver file, or run the installer if the manufacturer provides one.
On Mac, most drivers are built into the system, but some third-party cards require a separate installer from the manufacturer.
If installation fails, restart your computer and try again, or contact the manufacturer's support with your exact card model and OS version.

Finding the correct driver file for Windows

Go to the manufacturer's support website. Common wireless card makers are Intel, Realtek, Broadcom, MediaTek, and Qualcomm. Search for your card model on their site — for example, "Intel Wi-Fi 6 AX200" or "Realtek RTL8821CE." The support page will have a downloads section with driver files organized by operating system.

Select the driver that matches your Windows version exactly. If you have Windows 11 64-bit, do not read the Windows 10 version or the 32-bit version. read the file to your Downloads folder and note where it lands. Some manufacturers provide a .zip file you'll need to extract first; right-click it and select "Extract All," then choose a location.

If the manufacturer offers an installer (.exe file), read that instead — it will handle the installation automatically. If they only offer a raw driver file (.inf file), you'll need to point Device Manager to it manually in the next step.

Installing the driver on Windows using Device Manager

Open Device Manager again and find your wireless adapter under "Network adapters." Right-click it and select "Update driver." Choose "Browse my computer for drivers." Click "Browse" and navigate to the folder where you saved the driver file. Select the folder and click "Next."

Windows will search the folder for a compatible driver file and install it. This usually takes one to three minutes. You'll see a progress bar, then a confirmation message. Do not unplug your computer or close Device Manager during this process.

When installation finishes, restart your computer. After restart, check Device Manager again — your wireless adapter should no longer have a yellow warning triangle next to it. Open your WiFi network list to confirm the connection is available.

Installing the driver on Windows using an installer

If the manufacturer provided an .exe installer file, double-click it to run it. The installer will open a window asking you to confirm the installation. Click "Yes" or "Install" and let it run to completion. Some installers will ask you to restart your computer at the end — do so when ready.

After restart, check Device Manager to confirm the driver installed. You should see your wireless adapter listed without any warning symbol. Test your WiFi connection by opening your network list and connecting to a known network.

If the installer fails or says your hardware is not detected, restart your computer and try again. If it fails a second time, uninstall the driver first by right-clicking the adapter in Device Manager, selecting "Uninstall device," checking the box to delete the driver software, and clicking "Uninstall." Then restart and try the installer again.

Installing the driver on Mac

Most WiFi cards built into Mac computers have drivers included in macOS itself, so you usually do not need to install anything separately. If your WiFi is not working, the issue is typically a software conflict or a disabled adapter, not a missing driver.

If you have a third-party wireless card (less common on modern Macs), the manufacturer will provide a .dmg installer file. read it from their support website, double-click the .dmg file to mount it, then double-click the installer inside. Follow the on-screen prompts and restart your Mac when prompted.

After restart, open System Preferences, click "Network," and select "Wi-Fi" from the left sidebar. Your wireless network should appear in the list. If it does not, restart your Mac again and check System Report to confirm the card is recognized.

What to do if installation fails

The most common reason installation fails is a mismatch between the driver version and your operating system. Double-check that you downloaded the driver for your exact OS version — Windows 10 drivers do not work on Windows 11, and vice versa. Similarly, verify you selected the correct bit version (32-bit or 64-bit) for your system.

If you downloaded the correct file and installation still fails, restart your computer and try again. Sometimes a temporary conflict with another program or a partial previous installation causes the first attempt to fail. After restart, the second attempt usually succeeds.

If the adapter still does not work after two installation attempts, uninstall the driver completely, restart, and read the driver again from the manufacturer's website. Avoid downloading from third-party driver sites, as those files are often outdated or corrupted.

Checking that your driver installed correctly

On Windows, open Device Manager and expand "Network adapters." Your wireless adapter should be listed with no yellow warning triangle or red X. If you see either symbol, the driver did not install correctly — try the installation steps again.

Open your WiFi network list (click the network icon in the system tray) and confirm your available networks appear. Connect to a network you know the password for and open a web browser to test the connection. If pages load, the driver is working.

On Mac, open System Preferences, click "Network," and select "Wi-Fi." Your wireless networks should appear in the list. Click "Advanced" and confirm your card model is listed under "Preferred Networks." If everything appears normal and you can connect to a network, the driver is installed.

Frequently Asked Questions

Do I need to uninstall the old driver before installing a new one?

Not always. If you're updating to a newer version of the same driver, you can usually install the new version directly over the old one. If you're switching to a completely different driver or the installation fails, then uninstall the old driver first by right-clicking it in Device Manager, selecting "Uninstall device," and checking the box to delete the driver software.

Where do I find the driver if the manufacturer's website is hard to navigate?

Look for a "Support," "Downloads," or "Drivers" link on the manufacturer's main page. Type your card model into the search box on that page. If you're still stuck, write down your exact card model and contact the manufacturer's support team with that information — they can send you a direct link to the correct driver file.

Can I use a driver from a different manufacturer if it's the same card type?

No. Drivers are specific to the exact card model and manufacturer. Using a driver from a different company will not work and may cause system problems. Always read from the manufacturer of your wireless card.

What if my wireless card is not listed in Device Manager at all?

This usually means the card is disabled in BIOS or the system does not recognize it. Restart your computer and enter BIOS setup (usually by pressing Delete, F2, or F12 during startup — check your computer's manual for the exact key). Look for a setting called "Integrated Peripherals," "Onboard Devices," or "WiFi," and make sure it is set to "Enabled." Save and exit BIOS, then restart normally.

Do I need to read driver updates regularly?

Not required, but recommended. Manufacturers release driver updates to fix bugs, improve performance, and add support for new networks. Check the manufacturer's website every few months, or enable automatic updates if the driver installer offers that option.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.