Computer Stalls Computer Stalls When Turned On And Then Displays Error Message?

Computer stalls when turned on and then displays error message? - computer stalls

such a short time while you are online, the computer shuts down temporarily quiet throughout Rumbly noise. as RRR RRR RRR. rrr rrr rrr. it takes about a minute, then continue normally.

Now the computer will not boot. through the window of the first Dell with the start bar, then goes to a black screen where I can hear the sounds RRR.

then say this error, that there is a corrupted file:
\\ \\ \\ \\ \\ \\ \\ \\ U0026lt, Windows root> / system32/ntoskrnl.exe
I can not start in safe mode because the keyboard is frozen (only in this mode)
and tries to insert the Windows XP CD, but nothing happens

Please, it's the motherboard or a faulty hard drive? Is there anything I can do? Could be a virus or something else?