Warrning!
CPU has been changed or CPU ratio changed file. please reenter CPU settings in the CMOS setup and save changes before quit.
F1

This message start every time when I start my PC when I press F1 it start to load Windows and it looks like everything is ok. I never change CPU settings or enter in CMOS settup,   I can`t understand who this message start to appear on my computer........ Please can somebody tell me what is the problem
Thank youSee if setting the default or failsafe settings in your BIOS has any effect.Okay man but, my BIOS has a password and I don`t know the password what I can do. I know that if i remove bios battery I can enter, but I never do this before and I`m not sure what will happen after this. If you can give me some advise and answer how this message is appear .........
:-/If your BIOS has a password, and you donot know the password,  I assume this is not your PC.

If it is not your PC, you should ask the owner for assistance.No this is my computer, but i buy it  from another person and he put this password he gave me the password on one peace of paper but I LOST it. I can`t find this man now, because he change his telephone and I don`t know what to do.
For that I want to remove this BIOS password and fix this problem whit my computer....
Are there somebody who can help me to fix my computer or not.....I think you can reset the password by removing the password jumper on the mobo, then restart and shut-down.  Replace the jump before the next start-up and the password should be gone.You can TRY to reset the BIOS by either shortcircuiting the jumper usually labeled CMOS Jumper or by peeling out the battery and removing it for 10 seconds before attempting to place it back. Donot use tools, you may damage your mainboard. If you rid your hands of static electricity, not much can go wrong UNLESS you start to become careless.

Here are some articles related to the CMOS and BIOS:

Computer CMOS INFORMATION

CMOS

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Computer BIOS information and help

Thank you for your help  guys ........ I`ll see what I can do