I lost my desktop icons upon start up. What keys do I depress in order to restore them? I'm using Windows XP.?

Did you try right clicking on the desktop and choosing arrange by then make sure "show desktop icons" is checked.

reset it again if you can't find it.Key Customizer is a software which can change any key on the keyboard into other keys or disable your keys you dislike. But Key Customizer is not just a tool that allow you to customize your keyboard layout. With it, you can change your common 102 keyboard into a multifunctional one without costing much money. Want the N key to press Ctrl+V? Want the pause key to type frequently used text such as email address? Want F9 key to turned up the volume? What F12 to close the DVD driver? Want to lock the keyboard? Key Customizer can do these easily, it could help you make good use of each key on the keyboard.

Ctrl + Alt + Shift + F4 + C + Z + 1 + Enter