Keypad problem: abcdefgh51230n6*qrst4vwxyz

There is a "keypad" button somewhere on the keyboard, to cause those alphabetic keys to instead be interpreted like the keys on an adding-machine (or hand-calculator) -- very handy if you need to enter a lot of numeric data, and you are a "touch-typist" when using a hand-calculator.

Press the button to return the keyboard to "normal" mode.

As the name implies, a keyboard is basically a board of keys. Along with the mouse, the keyboard is one of the primary input devices used with a computer. The keyboard's design comes from the original typewriter keyboards, which arranged letters and numbers in a way that prevented the type-bars from getting jammed when typing quickly. This keyboard layout is known as the QWERTY design, which gets its name from the first six letters across in the upper-left-hand corner of the keyboard.

While the design of computer keyboards may have come from typewriters, today's keyboards have many other keys as well. Modifier keys, such as Control, Alt/Option, and Command (Mac) or the Windows key (Windows) can be used in conjunction with other keys as "shortcuts" to perform certain operations. For example, pressing Command-S (Mac), or Control-S (Windows) typically saves a document or project you are working on. Most of today's computer keyboards also have a row of function keys (F1 through F16) along the top of the keyboard, arrow keys arranged in an upside-down T, and a numeric keypad on the right-hand side. Some keyboards have even more buttons, allowing you to change the system volume, eject a CD, or open programs such as your e-mail or Web browser.

some of the fluid from the wipes must have short circuited the keyboard! you may have to invest in a new keyboard and keep it away from water based wipes this time!

Try pressing your numlock (top left of the keypad) and try the numbers again. Try your keyboard in another computer -- if they still dont work, you have a hardware failure ... time for another keyboard. If it works on another computer, then I would recommend right-clicking on "My Computer" and selecting "Manage". Go into the hardware manager, and delete your keyboard, and reboot. The Windows will find your keyboard and reinstall the drivers, hopefully resetting whatever configuration was previously blocking your keypad keys.

u r keyboard is likely to b defective or ur ram..
lightly strike/tap the keypad using ur hand..

if u r a professional, open the keyboard..deep clean all the carbon contacts beneath the keys using Iso-Propyl alcohol..put/stick 'Carbon-Dots' (available in cheap level spare market) as n where necessary..
hope it'll work..

better to seek professional supervision esp of ur system admin/vendor....

Not exactly a direct solution, but...how about getting an external keyboard?

press the function key while pressing the numlock key, then test

Check to see if your shift, control, alt, or other modifier keys are stuck on your keyboard. These can cause your keyboard to act erratically. Also, if this is a wireless keyboard, you may need to change the batteries, as this can also cause a keyboard to act erratically.

You can probably find a keyboard on Ebay that will fit you computer. It is not difficult to change the keyboard, but it does require some expertise.
As a temporary solution you can use an external USB keyboard or a wireless keyboard. They are readily available.

yes, sounds like your system board is ka-put. (bad).