Most major manufacturers still host legacy drivers on their support portals:

Realtek high definition audio driver for Windows XP - Lenovo Support

Note the and Provider listed under "Devices" and "Drivers"—this is your specific hardware model. Where to Download Official Free Drivers

: Hosted versions of legacy drivers like Realtek v.5.10.0.5527 are available for archival use. Installation Steps

: Offers Realtek drivers (e.g., v.5.10.0.5624) for legacy desktop systems on Dell Support .

Before downloading, you must know what sound card your system uses: Click , select Run , type dxdiag , and press OK . Navigate to the Sound tab.