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The HDA CX20595 Soft Modem driver helps Windows communicate with the computer’s built-in soft modem for dial-up connections and supported fax applications. It is intended for users who need to restore modem functionality after reinstalling Windows, resolve a missing-device entry, or replace an incompatible driver.
Listed under the Network category with Microsoft as the vendor, this device has driver options for Windows 10, 8.1, 7, Vista, and XP. Compatibility depends on the specific driver package and your computer’s hardware, so check those details before downloading.
Key Features
- Device recognition: Helps Windows identify the HDA CX20595 Soft Modem and make it available to compatible software.
- Dial-up connectivity: Enables supported modem functions for connecting through a suitable analog telephone line and dial-up service.
- Application support: Allows compatible communications and fax software to access the modem where those functions are supported.
- Driver recovery: Provides a way to reinstall missing driver components or update an existing installation with a matching package.
How to Install HDA CX20595 Soft Modem Driver
- Check your system. Confirm your Windows version and whether it uses a 32-bit or 64-bit architecture. For Windows 10/11 systems, note that Windows 10 is listed as supported, but Windows 11 compatibility is not confirmed.
- Verify the device. Open Device Manager and locate the modem or unidentified device. Use Properties > Details > Hardware Ids to compare its identification with the driver package’s supported hardware.
- Choose the correct package. Before starting an HDA CX20595 Soft Modem driver download for Windows, check the package’s operating-system support, source, and installation instructions. A free download should still be verified for authenticity and compatibility.
- Install the driver. Extract the downloaded archive if necessary, then run the included installer. If no installer is provided, select Update driver in Device Manager and browse to the extracted driver folder.
- Restart and test. Restart your computer if prompted, check Device Manager for warning icons, and test the modem with your communications software and a suitable telephone connection.
Keep the driver updated when a compatible release addresses a problem you are experiencing. The latest version is only useful if it supports your exact hardware and Windows edition; avoid replacing a working driver with an unverified package. If an update causes problems, use Device Manager’s Roll Back Driver option when available.
Driver Details
| Device | HDA CX20595 Soft Modem |
|---|---|
| Vendor | Microsoft |
| Category | Network |
| Supported OS | Windows 10, 8.1, 7, Vista, XP |
| Published | October 31, 2026 |
| Updated | October 31, 2026 |