Ensure your laptop is plugged into a wall outlet. Do not attempt to update the BIOS on battery power.

: Right-click the downloaded BIOS executable file (e.g., EP0000263654.exe ) and select Run as Administrator .

The BIOS fixes a specific bug that could cause the system to hang or freeze on the Windows boot screen (logo) after a restart.

BIOS Update Utility (Windows 10 64bit, Windows 8.1 64bit) | Sony USA

Finding the correct BIOS update link for legacy Sony VAIO laptops can be incredibly frustrating. Sony officially exited the personal computer market in 2014, transferring its PC division to Japan Industrial Partners (JIP). Consequently, official support pages have changed, and many direct download links for older models like the (frequently cross-referenced with the VPCF1 series , such as the VPCF1190X) have been archived or removed from regional Sony support sites.

: Turn on the computer, press the F2 key repeatedly to enter the BIOS setup menu, and read the line item titled Product Name . 🌐 The Official Sony VAIO PCG-81114L BIOS Update Link