Using your notebook
Using PC Cards
Sony Notebook User Guide
n N 43 
To remove a PC Card
Follow the steps below to remove a PC Card while your computer is on. If the PC Card is not properly removed, your system may malfunction. When your computer is off, skip steps 1 to 6.
1 Click the Start button on the Windows® taskbar, point to Settings, then click Control Panel.
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3 Click Next, click Uninstall/Unplug a device, and then click Next.
4 Select the name of the appropriate PC Card in the list, and then click Next. 5 Click Next to confirm that you want to unplug the PC Card.
6 Click Finish.
7 Press the PC Card release button.
8 Gently grasp the card and pull it out.