My computer failed to boot from any data carriers because I had unformatted partitions on hard drive. I don't know why but it didn't let me.
Solution:
I took my HDD to my friend's place and performed a full format. After the format, it let me boot CD's but after XP the copingscreen the computer had to restart and the setup didn't continue with installing windows. Then I decided to use Hiren's boot CD to create a new partition and place it in the end of hard disk so the free 8 megs* will be in the beginning. Then I rebooted and windows copied files successfully and installed Windows successfully.
* 8 Megs = The unpartitioned space what windows needed to do something. I don't know what.
Mine was 1 mb before I performed the full format.