Windows Special Keys; Fn Sticky Key - Toshiba DX1210 series User Manual

Reduce: Pressing FN + 1 reduces the icon size on the desktop or the font
sizes within one of the supported application windows.
Enlarge: Pressing FN + 2 enlarges the icon size on the desktop or the font
sizes within one of the supported application windows.
Volume down: Pressing FN + 3 decreases the volume in increment.
Volume up: Pressing FN + 4 increases the volume in increment.

FN Sticky key

You can use the TOSHIBA Accessibility Utility to make the FN key sticky,
that is, you can press it once, release it, and then press an "F Number"
key. To start the TOSHIBA Accessibility utility, click Start → All Programs
→ TOSHIBA → Tools & Utilities → Accessibility.

Windows special keys

The keyboard provides two keys that have special functions in Windows,
the Windows Start Button key activates the Start menu while the
application key has the same function as the secondary (right) mouse
button.
This key activates the Windows Start menu.
This key has the same function as the secondary (right) mouse button.
User's Manual
The Keyboard
5-4