I just started learning German through DW online courses. I can not find how to type the ß and capital ß (ẞ) on the German keyboard of Windows 8.
As I understand your original question, you are after the regular lower case ß.
You can find it on a German keyboard layout: the letter ß is one key to the right of the number zero(0). As others have suggested, the upper case use of ß is normally substituted by
I am typing this on a laptop with Windows 8, where I can use a shortcut key to switch between different keyboard layouts.
If you have a touch device you may need to install the keyboard layout for German to see the key on the on-screen keyboard.
Officially, there is no such thing. Yes, some typographers have designed a ß to better go along with other capital letters, but it's still a (very) far cry from universal adoption.
Since there are no words starting with ß you'd only need it for all caps. Just use SS for now, is my advice, if you must.
I use the alt codes, which work in certain formats. This does not require you to have a new keyboard, download any programs, install any software, or continually copy paste. However, not all programs will accept alt codes.
You hold down alt, type a few numbers, then release alt. Remember to engage Num Lock if using the keypad.
ß = alt + 225
Other unique German letters:
ä = alt + 132
Ä = alt + 142
ö = alt + 148
Ö = alt + 153
ü = alt + 129
Ü = alt + 154
There are also alternate codes for all of these, using four numerals:
ß = alt + 0223
ä = 0228
Ä = 0196
ö = 0246
Ö = 0214
ü = 0252
Ü = 0220
On Gnome 3 in Debian Linux with German layout eszett(ß) type by - key which goes after zero key without pressing shift key.