Here’s a useful, step-by-step write-up on updating the BIOS for a (model series often includes L745-S4210, L745D, etc.).
: Check your exact "Part Number" (e.g., PSK0YC) on the sticker underneath your laptop. Using a BIOS meant for a different sub-model can cause failure. Step 1: Identify Your Current Version Windows Key + R , and hit Enter. BIOS Version/Date to see what version you currently have. Step 2: Download the Correct BIOS Visit the official Dynabook (formerly Toshiba) Support Site Filter by the tab and select from the categories. Update Bios Toshiba Satellite L745
(if official site doesn’t have it):
You are still using Windows 7 with the original HDD, and everything works. A BIOS failure would cost more than the laptop’s current value (approx. $50–$80). Here’s a useful, step-by-step write-up on updating the
The most common cause of a failed BIOS update is a loss of power. If the laptop shuts down while writing new code to the motherboard chip, the corruption is usually permanent. Step 1: Identify Your Current Version Windows Key