I would like to know if is there something which could be similar and simple for this
Question's answer. And Please give me the clear meaning for this answer too.
Question : Is it ok if I use your Computer ?
Answer : I'd rather you didn't, if you don't mind.
Best Answer
Your answer is perfectly fine. Why do you want to change it?
If you are concerned about politeness, I suggest you give a reason why you do not want this person to use your computer. For example,
Or,
If you change the wording, you could include the words I'm sorry,
The hope you don't mind expands the thought of your being sorry. In effect, you are saying that you do not want to offend this person, you are sorry if you do, but your answer is nevertheless no.
Your tone of voice is important. Your facial expression is important, too. When you are telling a person "No," your voice should be pleasant and conciliatory, and your face should "wear" a partial smile.
Another possibility:
Or,
This response assumes the person could be offended, but it tells him or her that that is not your intention. In other words, you would say no to anybody and everybody, not just him or her. Or,
Or,
Or,
Or,
Here, the phrase "No offense" is shorthand for "I do not mean to offend you" or "My intention is not to offend you."