Certain keys are not functioning properly on the Keyborad

NUMBER LOCK
You have press the NumLk key (number lock) and this changes the right hand keys to a number pad.
Press the NumLk key (also doubles as the ScrLk key to toggle the Number lock). it is near the F12 function key. When the NumLk has been enabled a LED light is turn on to indicate this function has been selected. Press the NumLk key again to turn off the Number Lock.

It seems the Basic Input Output System (BIOS) settings have been changed on this computer.

This type of error message occurs when the computer is trying to seek a network device to boot from, or is set to boot from a removable disc or other media that have bootable files stored on them that the BIOS requires prompting or selection for in order to proceed to the boot stage.

First check that there is no disc in the Optical (CD/DVD) Drive -> if there is remove it -> restart the computer by pressing and holding down the Control (Ctrl) and Alternate Value (Alt) keys 2 fingers of your left hand -> press the Delete (Del) key with your right hand -> release all 3 keys -> tap either the Del or the Function 2 (F2) key 2-3 times as the first white writing appears on the black background of the screen after powering up -> the (Power On Self Test (POST) procedure will then redirect to BIOS Settings (often referred to as Setup) -> use the keyboard arrows to navigate to Set Default Values -> press the F10 key -> press y for yes or Enter for OK -> test the boot process again.

If the computer still does not boot properly repeat the above steps to enter the BIOS Settings/Setup again -> use the keyboard arrows to navigate to Boot Menu -> arrow down to Boot Device Order -> look at the BIOS Control Options at the bottom or side of the window to find the appropriate control keys for changing the order of the boot devices (often the + and - keys, the F5 and F6 keys, the Page Up [PgUp] or Page Down [PgDn] keys -> move/promote the Hard Disk Drive (HDD) to the First Boot Device position -> press F10 -> y for yes or press Enter for OK -> test the boot process again.

Install the following Windows 7 drivers and utilities.  All the function keys will work properly.

 

ATK0100 ACPI Driver

ATK_MEDIA Utility

ATK_Hotkey Utility

ASUS ATKOSD2 Utility

ATK Generic Function Utility

 

http://support.asus.com/download/download.aspx?SLanguage=en-us&model=K50IN

 

Try an external keyboard and see if that works.
Device manager and find keyboard
open that up and delete standard keyboard info and hard boot

http://www.wikihow.com/Fix-a-Keyboard-That-Has-the-Wrong-Characters

DEL is Delete. Usually found in a cluster with Insert, Home, End, Page Up and Page Down. With the Dell 6400 E1505, these are on the upper right hand side of the keyboard. (The "half" with the two rows of keys instead of 1 row of function keys.)

I hope this helps.

Cindy wells

Try to force pull out, pressing the key next to "insert" (page up, or delete, or home..differit keyboards model) an try to put some slim balde under the insert key and force to unstuck.
In most case if this thing don't work and you will need to open your keyboard, removing screw from bottom, and after this you can have acces on the back side on keys.

This is yoru number lock function

look along the "F" key row for the NumLk or picture of the number 1 in a square. then hold down the Fn key on the lower left of the board. press the "F" key that corresponds to it and this will disable it.

ok bottom left hand side of keyboard there is a key with fn on it hold this down along with other blue keys that have like little suns on them this is your brightness keys

You may have activated a shortcut key on your keyboard such as the Fn (function) key. It looks like this

Fn and usually situated on the bottom left hand side of your keyboard near the left hand cntrl button.

Some function keys when pressed once remain on. Once they are on they can cause different symbols to appear in place of the normal keyboard ones. If you press your Fn key again and then try typing on the keyboard once again it may help fix your problem.

I hope this helps
Cheers
john