If you actually mean "your computer" then it's korjaa koneesi in Finnish.
If you instead meant "repair my computer" then it's korjaa koneeni.
The conjugation of the word repair in Finnish, korjata, depends on the situation, so a general translation is impossible to give.
In the beginning is alussa in Finnish.
Food is ruoka in Finnish.
komea is handsome in finnish :)
Chocolate is suklaa in Finnish.
Flower is kukka in Finnish.
For you is sinulle in Finnish.
How is miten in Finnish.
I am not Finnish. - (Minä) en ole suomalainen.
Finnish legend in Finnish is "suomalainen legenda".
Daughter is tytär in Finnish.
Boring is tylsä in Finnish.
Yes is "kyllä" in Finnish.
Black is musta in Finnish.
In the beginning is alussa in Finnish.
Pie is piirakka in Finnish.
Wonderful is ihana in Finnish.
Friendship in Finnish is "ystävyys".