Cause: Realtek audio driver conflict after Windows 10 update. Solution: Uninstall the existing High Definition Audio device in Device Manager. Check "Delete driver software". Then install the specific Realtek driver from 2015 or later (v6.0.1.7540 recommended).
Sony removed its official driver portal, but the EU support archive still works. Visit:
Pro tip: Enter your full model number without spaces: PCG-71911M. drivers sony vaio pcg 71911m drivers full
When Sony stopped making Vaios, they also shut down the official “Sony eSupport” website. The original driver download pages for the PCG-71911M are now gone. Searching “drivers Sony Vaio PCG 71911M drivers full” often leads you to sketchy third-party sites offering fake “driver updater” software or outdated, malware-ridden executables.
Warning: Avoid any site that asks you to download an “automatic driver updater” before showing you the actual drivers. Stick to reputable sources. Cause: Realtek audio driver conflict after Windows 10
For a manual approach:
Cause: Outdated storage controller driver or incompatible Intel Rapid Storage Technology (IRST). Solution: Boot into Safe Mode. Uninstall any IRST driver and revert to the standard Microsoft SATA AHCI Controller driver. Pro tip: Enter your full model number without
Follow this sequence to avoid conflicts: