This driver is not universal. It is specifically designed for older "Bay Trail" and "Braswell" architecture Chromebooks. Common supported models include:
Note: Newer Chromebooks (Kaby Lake, Apollo Lake, or newer) often use different audio drivers (usually by Realtek or dedicated UCM files in Linux) and may not require this specific SST driver.
The latest "new download" as of late 2024/early 2025 typically includes:
Do not download from:
The CoolStar SST Audio Driver is an essential tool for anyone breathing new life into an old Chromebook by installing Windows. It solves the most significant hurdle of the conversion process. By ensuring you download the latest version directly from the developer's repository and following the manual installation steps, you can fully restore multimedia functionality to your device.
CoolStar’s SST (Signal Processing Engine) audio drivers are essential for anyone running Windows on Chromebooks. These drivers bridge the gap between Intel’s hardware and Windows, fixing the common issue of "no audio" on converted devices.
If you are looking for the latest version, here is everything you need to know about downloading and installing the CoolStar SST audio driver. What is the CoolStar SST Audio Driver?
Most Chromebooks use Intel Smart Sound Technology (SST) for audio processing. When you install Windows on these machines, the default Microsoft drivers usually fail to recognize the hardware. CoolStar, a prominent developer in the ChromeOS-to-Windows community, created custom drivers to enable: Internal speakers and microphones. 3.5mm headphone jack functionality. Proper power management for audio chips. Compatibility Check
Before downloading, confirm that the device is supported. These drivers are typically designed for Intel-based Chromebooks, specifically: Gemini Lake (e.g., Lenovo 100e Gen 2, HP Chromebook 11 G7 Go to product viewer dialog for this item. Comet Lake (e.g., Go to product viewer dialog for this item. , Samsung Galaxy Chromebook) Jasper Lake (e.g., HP x360 14c) Tiger Lake (Latest support added recently) How to Download the New SST Audio Driver
To ensure the safest and most up-to-date version, always use the official source. Visit the official CoolStar.org website. Navigate to the Chromebook Windows Drivers section.
Select the device’s CPU generation (e.g., "Intel Gemini Lake"). Locate the Intel SST Audio Device link. Click the download button for the .zip or .exe installer. Installation Steps
Installing these drivers is slightly different from standard Windows software because they often require "Test Mode" to be enabled due to driver signing requirements. 1. Enable Test Mode Open Command Prompt as Administrator and type: bcdedit /set testsigning on
Restart the computer. A "Test Mode" watermark will be visible in the corner. 2. Run the Installer
Extract the downloaded folder. Right-click the .inf file and select Install, or run the provided Setup.exe. 3. Update via Device Manager If the audio does not start immediately: Right-click the Start button and select Device Manager.
Look for "Unknown Device" or "Intel SST" under System Devices. coolstar sst audio driver new download
Right-click > Update Driver > Browse my computer and point it to the downloaded folder. Troubleshooting Common Issues
No Sound After Install: Check if the "CrosSST" service is running in the Services app.
Driver Signature Error: Ensure Secure Boot is disabled in the BIOS/UEFI settings and Test Mode is enabled.
Crackling Audio: This usually happens on older versions. Re-download the "New Download" package from CoolStar’s site to get the latest stability patches.
💡 Quick Tip: Some of CoolStar's newer drivers are part of a subscription or "Patreon" early-access model to support ongoing development. Check the site status to see if the specific model is currently free or requires a license key.
CoolStar SST Audio drivers are essential for users installing Windows on Chromebooks, as standard Windows drivers often fail to support the proprietary Intel SST (Smart Sound Technology) or AMD ACP interfaces found in these devices. Performance Review
Success Rate: The driver successfully enables sound on various Chromebook models (e.g., Google Bluebird, Electro, Asuka) where audio would otherwise be non-functional.
Audio Quality: Users report "awesome" sound quality when using earphones/headphones after installation.
Volume Issues: A common drawback is low internal speaker volume. Some users find the volume reduced to roughly 25% of what it was on ChromeOS.
Functional Features: Supports essential features including speakers, 3.5mm headphones, microphones, and HDMI audio. Availability and Cost
The drivers are generally distributed via the CoolStar website and their Patreon page.
Free Tiers: Basic installation guides and some legacy drivers are free.
Paid Access: Newer SST Audio (AVS) or SOF Audio drivers typically require a subscription or one-time payment (often around $5–$10 USD) via the CoolStar Patreon. Installation Steps
Title: CoolStar SST Audio Driver Review: Enhancing Audio Experience This driver is not universal
Introduction: The CoolStar SST audio driver is a software solution designed to improve the audio quality and performance of computers. In this review, we'll explore the features, benefits, and installation process of the CoolStar SST audio driver, which can be downloaded from various online sources.
Key Features:
Installation and Performance: The installation process is straightforward and easy to follow. Once installed, the driver automatically detects and configures the audio device. In our tests, the CoolStar SST audio driver performed admirably, providing a noticeable improvement in audio quality. The sound was clearer, with better definition and depth.
Pros:
Cons:
Conclusion: The CoolStar SST audio driver is a solid choice for those seeking to enhance their computer's audio performance. With its advanced sound processing, customizable settings, and easy installation, it's a great option for music enthusiasts, gamers, and anyone looking to upgrade their audio experience. While some limitations and minor bugs were reported, the overall performance and benefits of the CoolStar SST audio driver make it a worthwhile download.
Rating: 4.2/5
Recommendation: If you're looking to upgrade your computer's audio performance, we recommend downloading the CoolStar SST audio driver. With its robust features, ease of use, and improved audio quality, it's a great choice for anyone seeking a better audio experience.
CoolStar SST Audio Driver is a custom driver designed to enable functional audio on Chromebooks that have been "converted" to run Windows (typically those with Intel Skylake, Kabylake, and newer processors).
You can find the latest downloads and installation instructions directly on the Chrultrabook Docs
, which serves as the official repository for these community-developed drivers. Key Installation Steps Check Compatibility
: Ensure your specific Chromebook model (board name) is supported for audio. You can verify this on the Supported Devices Enable Developer Mode & UEFI
: You must have already flashed custom UEFI firmware (like MrChromebox) to run Windows. Download the Installer
: Look for the "Intel SST Audio" section in the driver list. Install the Driver Run the provided You may need to disable Driver Signature Enforcement in Windows if the driver is not digitally signed. Note: Newer Chromebooks (Kaby Lake, Apollo Lake, or
: A full system reboot is required for the audio hardware to be recognized. Important Notes Paid vs. Free
: Some of CoolStar's newer SST drivers (for newer Intel generations) may require a small license fee to support ongoing development.
: If you still have no sound after installation, check the Windows Device Manager
for any "Unknown Devices" or "High Definition Audio Controller" errors. Chromebook board name to see if this driver will work for you?
If you are a Windows user who has ever experienced the dreaded "No Audio Output Device is Installed" error after a fresh OS installation or a driver update, you are not alone. One of the most problematic pieces of hardware in modern laptops—particularly those from Dell, HP, Lenovo, and Microsoft Surface—is the Intel SST (Smart Sound Technology) Audio Controller.
Enter CoolStar, a legendary figure in the driver modification and operating system customization community. Known for their work on jailbreaking tools (like the Electra jailbreak for iOS) and legacy Windows audio drivers, CoolStar has provided a crucial solution for thousands of users. The CoolStar SST Audio Driver is a community-developed, modified driver package designed to fix compatibility issues, restore lost audio, and even enable audio on unsupported or legacy operating systems like Windows 10 LTSC or modified versions of Windows 11.
In this article, we will cover everything you need to know about the new download for the CoolStar SST Audio Driver, including where to find it, how to install it safely, and how to fix common errors.
After rebooting, check the following:
If you still see a red "X" on the speaker icon, you may also need to install the Realtek High Definition Audio Driver (for HDA-based SST) or Cirrus Logic Awesome Speaker Amplifier Driver (for Surface devices) alongside CoolStar’s SST driver.
The ChromeOS hardware ecosystem is characterized by a diverse range of low-cost, efficient laptops utilizing Intel System-on-Chip (SoC) architectures. A significant portion of these devices, particularly those based on the Intel Braswell, Bay Trail, and Skylake microarchitectures, utilize Intel’s Smart Sound Technology (SST) for audio processing.
Unlike standard High Definition Audio (HDA) implementations, Intel SST relies on a combination of DSP (Digital Signal Processing) firmware and proprietary driver stacks heavily integrated into the ChromeOS kernel. When users attempt to "MrChromebox" or "CoolStar" their devices—installing a custom firmware payload to run Windows or standard Linux—the native audio functionality is immediately severed.
The CoolStar SST Audio Driver emerged as the primary solution for this incompatibility, serving as a bridge between the Windows Driver Model (WDM) and the hardware-specific DSP configurations of ChromeOS devices.
CoolStar hosts his drivers on his official developer website. Because this is community-maintained software, it is highly recommended to download directly from the source to avoid outdated versions or malware.
Where to find the new download:
Important: Do not download these drivers from random file-hosting sites like Softpedia or Mega, as they may contain outdated versions.