After downloading, right-click the .inf file → Install. If the file version is between 6.30.223.256 and 7.35.351.0 , you have the right driver. Conclusion The Broadcom BCM94313HMGB is a stubborn relic, but it does not have to be e-waste. By using a legacy Windows 8.1 64-bit driver and manually forcing installation via Device Manager, you can restore stable Wi-Fi to your Windows 10 64-bit system.
If you have landed on this page, you are likely frustrated. You have an older laptop, a budget mini-PC, or a legacy wireless card—the Broadcom BCM94313HMGB —and after upgrading to Windows 10 (64-bit), your Wi-Fi has vanished, shows errors, or refuses to connect. broadcom+bcm94313hmgb+driver+windows+10+64bit+link
You need a reliable . But finding a safe, functional driver for this legacy chipset in 2025 is a minefield of fake download buttons and malicious adware. After downloading, right-click the
| Source | Search Term | File to grab | |--------|-------------|----------------| | Microsoft Update Catalog | BCM4313 Windows 8.1 | bcmwl63a.inf | | HP Support (for Pavilion g6/g7) | Broadcom Wireless LAN Driver for Windows 8.1 | sp66411.exe | | Dell Support | Dell Wireless 1703 Driver | Network_Driver_0R8VH_WN64_6.30.223.256_A00.EXE | | Lenovo Support | Lenovo BCM4313 Driver | 6irw10ww.exe | By using a legacy Windows 8
The safest, most current verified link as of this writing is available via the Microsoft Update Catalog searching for "bcmwl63a - 6.30.223.256" . Copy that exact string for a direct result. Disclaimer: Always scan downloaded driver files with Windows Defender or Malwarebytes. Broadcom and Microsoft no longer certify this driver for Windows 10, but the Windows 8.1 version remains functional on 64-bit builds 21H2 and earlier. For Windows 11, this card is not recommended.
However, that does not mean you are out of luck. The Windows 8.1 64-bit driver works perfectly on Windows 10 64-bit—but only if you know how to force the installation. To avoid third-party driver installers that bundle malware, follow this safe, step-by-step method. Step 1: Download the legacy driver package from a reliable repository The safest "link" is not to a shady driver website but to the Microsoft Update Catalog or HP/Dell OEM support sites , since this chip was widely used in their systems.
Avoid sketchy "driver updater" software. Use the official Microsoft Update Catalog or your laptop OEM’s support page for Windows 8.1. And remember: if performance remains unacceptable, a $10 replacement card will save you years of frustration.