Visual Keyboard
Esc
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
Prt
Scrl
Pus
`
1
2
3
4
5
6
7
8
9
0
-
=
BACK
TAB
Q
W
E
R
T
Y
U
I
O
P
[
]
\
CAPS
A
S
D
F
G
H
J
K
L
;
'
ENTER
SHIFT
Z
X
C
V
B
N
M
,
.
/
SHIFT
CTRL
WIN
ALT
SPACE
ALT
WIN
MENU
CTRL
Ins
Hm
PU
Del
End
PD
Num
/
*
-
7
8
9
4
5
6
1
2
3
0
.
+
Ent

How to Diagnose a Broken Key

Since a broken key does not send any electronic signal to the computer, this tool (or any software) cannot strictly "detect" it. However, you can identify it by process of elimination: