Windows frozen

A wife sends her husband an sms on a cold winter evening:

“Windows frozen”.
The husband sends his answer back:
“Pour some warm water over them”.
Some time later the husband receives answer from his wife:

What did she answer back?

(1) Choose from the following
“The computer is completely bust now!”
“It’s still cold!”
“It’s worse now!”

(2) In the morning she uses ….. .
the lift
the stairs
the lift and the stairs

(3) In the afternoon she uses ….. .
the lift and the stairs
the stairs
the lift

(4) She walks ….. .
up from the ninth floor
down from the tenth floor
up from the ground floor