Right-click the driver installer file and select . Go to the Compatibility tab.
| Problem | Likely Fix | |---------|-------------| | No brightness control | Install Intel Graphics driver, then Sony Firmware Extension Parser | | No sound after Windows update | Reinstall Realtek HD Audio driver, disable "audio enhancements" | | Touchpad not working | Install Synaptics driver, enable via Fn+F1 or check BIOS | | Wi-Fi drops | Update wireless driver, disable "Allow computer to turn off this device" in Power Management | | Blue screen on sleep | Update Intel RST and graphics drivers | sony pcg31311l drivers
Right-click the unknown device, select Properties > Details , change the property dropdown to Hardware Ids , and copy the code (e.g., VEN_10EC&DEV_8168). Paste this into a search engine to identify exactly which driver is missing. To ensure your laptop runs smoothly, tell me: Right-click the driver installer file and select
Method B: Installing Legacy Drivers via Compatibility Mode (For Windows 10/11) Paste this into a search engine to identify
Manages communication between the processor, memory, and motherboard components.
Open ( devmgmt.msc ). No yellow exclamation marks means success. Test: Wi‑Fi, sound (speakers + mic jack), USB ports, brightness keys, sleep/wake.
Are there any showing errors in your Device Manager?