Where to Find CMOS Battery in a 2009 Sony Vaio Laptop to Reset BIOS Password

If you are looking to reset the BIOS password on your 2009 Sony Vaio laptop, you will need to locate the CMOS battery. In a Sony Vaio laptop, the CMOS battery is usually located near the memory modules or the wireless card. To access it, you will need to remove the bottom cover of the laptop and locate the small circular battery on the motherboard. Once you find the battery, carefully remove it for a few minutes to reset the BIOS settings, including the password.

It's important to handle the CMOS battery with care and make sure to reinsert it properly after resetting the password. Resetting the BIOS password can help you regain access to your laptop if you have forgotten the password or if it has been changed without your knowledge.