1. To get the German keyboard :

Go to: Start menu (click)
Go to: Settings and Control panel (click) => Pick a catagory
Go to: Date,Time,Language,and Regional Options (click) => Pick a task
Go to: add other language (click) => this opens a box  (under  Language)
Go to: Details (click)

Go to: add => Input Language
Scroll to: German (Germany) (click)
Find:   OK  (click)

Find:   Key settings (click)
Select either: Left Alt+Shift  or  CRTL+Shift  to switch languages (click)
Check box:  Enable indicator on taskbar (click)
Go to: Apply(click)

This is how the keys are assigned:

Top row:

      UPPER CASE:     °     !     “     §     $     %     &     /     (     )     =     ?  
     lower case:        ^     1    2     3     4     5       6     7     8    9     0     ß   

Second row:

     UPPER CASE:      Q    W    E    R    T    Z    U    I    O    P    Ü    *    ‘
    lower case:          q     w    e     r     t     z     u    i     o     p    ü    +    #

Third row:

     UPPER CASE:      A     S     D     F     G     H     J     K     L     Ö     Ä
     lower case           a     s      d     f       g     h      j      k      l      ö      ä

Bottom row:

     UPPER CASE:       Y      X      C      V      B      N      M      ;      :      _
     lower case:           y      x       c       v       b      n       m      ,      .      -
 

Go to:             Start menu
there  find:    Optional Software
there  find:    Microsoft
there  find:    MS Office German Spelling/Grammar (click)