Look for the driver. Windows 7 default drivers often result in "No Audio Output Device is installed" errors on this specific HCL model. 📥 How to Download and Install
Since HCL’s official site no longer hosts these, use trusted archives: Look for the driver
This article is designed to clarify what this specific hardware is, why driver support is critical, and the practical challenges users face when trying to run Windows 7 on this legacy government-issued device. why driver support is critical
Here is an essay on the subject: