A Letter From Mr Bean To Bill Gates

Dear Mr. Bill Gates,

I had bought a computer for my home and I notice a few problems that you had missed.

1. In the system had a 'START' button but I notice that they had no 'STOP' button. I want you to check, please?

2. I learned 'Microsoft Word', now I want to learn 'Microsoft Sentence'. When do you want sell it?

3. In my computer had 'Microsoft Office', how about the 'Microsoft Home', because I used these computer at home? 

4. One personal question, Your name is Gates, but you sell 'Windows'. Why not 'Doors'?

I'm waiting for your reply.

Thank you.

Mr. Bean