How to type backslash key? - Computers & Internet

On most standard English keyboards the backslash key is located above the "Enter" or "Return" key. If your keyboard has been damaged, you can still copy and paste a backslash symbol that someone else has typed.

\ (backslash)
/ (forward slash)

Sounds like a bad button on keyboard.

ASCII - Hold the Alt key and type 92 is \ backslash Alt - 47 is / forward slash.
You may have reassigned the keys. Go to Control Panel and reset in Region and Language > Keyboard.

the keyboards are set up on international standards and it is not usual to be able to configure a separate key for some other symbol

what is the keyboard type you are using?

The Question Mark and Backslashes are typed while holding the SHIFT key,
the "Green" characters sound like your FUNCTION keys.

If you're NOT holding down the FUNCTION key or the FN key you may have some kind of Function Lock enabled. (Look for a Fn Lock of F Lock button/light)

How do I access the backslash key on an american keyboard

1) With your NUMLOCK on, hold the ALT key down and type 092 on your numeric keypad.  When you have NUMLOCK on, ALT and a 3-figure digit gives you special characters.  092 is the backslash on UK and Spanish keyboards, so hopefully it'll work for you.  If you get something different, you'll have to try different numbers until you find it

or 

2) In Start --> Programs --> Accessories there's a program called Character Map.  This gives you a list of available characters

or

3) copy and paste this one:  \

Hello,
For backslash [2nd][2]
Negative [(-)]

Hope it helps

To get a backslash, you need to print the upper ascii character 92 (decimal). On most machines you can get upper ascii characters by holding down the Alt key and typing the decimal value on the numeric keypad. On the little IBM machine I'm typing this on, there is no numeric keypad, but if I switch on numlock (by doing shift-scroll-lock) the j-k-l keys become 1-2-3 etc. Now id I hold down Alt and type 92 (i.e.keys 9-k), this is what I get: \ Howzzat?.