Problem solving Computer

How are ya? few tips from me:
first complaint

1.questions
My computer was so slow

1.a. Answer
check is the ram (memory) you do fit the size of your hard drive or ram is usually small it will slow your computer and your computer as if it were a matter you live virus antivirus appropriate pairs with the computer

2.questions
komputer I often read like a very long sound tuuu..tt
2.a. answer
you should check your motherboard sound is usually long if it is necessary to watch out that your motherboard is damaged

3.questions
My computer is often not the picture yes.
3.a.answer
check the cables behind your computer if a problem or not or Vga Card troubled you, use 2 computers for testing whether you are a vga card problem monitor

4. questions
why my computer can not re-intall it.
a. answer
your computer could be a problem with the cd roomnya so at boot time can not continue
b. check your hard drive if there is damage or not is usually damaged hadrisk Dapa not read by the computer in