You’re going to be amazed, or disgusted, at the amount of junk that flies out
from beneath the keys; I do hope you are not eating crumbly cookies at your
desk, but there are many other sources of junk that can settle on the key-
board and slow down, gum up, or grind to a halt the workings. (If you need to
know: hair, dandruff, pieces of skin, pet dander, pollen, spores, dust, oils, and
all sorts of other stuff are all around you.)If your vacuuming or puffing does not dislodge all of the gunk or if there is a
sticky residue beneath the keys you may have to remove the keys and clean
beneath. For more details, see Chapter 10.24 Part I: Putting a Computer in Your Lap