Black screen requesting password when I tiurn on toshiba satellite pro c665

There is something wrong with your hard drive.. It is not being recognized by your bios. Could be a bad logic board. Get appropriate software and perform diagnostics on it to confirm

check RAM or keboard

This is what we call a BIOS password, I have worked in the PC repair field for years, and this is something that you are simply not able to "crack" or get around. There are a couple things you can try though, if you can find an locate the BIOS BATTERY inside the notebook, you can pull it out, and SOMETIMES it will reset that password....this is very rare, and you only mostly see this is older computers that it actually works. Two questions: Is this used? Is it still under warranty? (check by going to Toshiba.com) Hope this helps!

try F5

OS is corrupt...reinstall OS using the original Windows CD

Hi

You could try to start up in safe mode ( quite often f8 ) sign in as administrator and cancel the password

Also if you get into safe mode try a system restore back to when it was ok

Or hit delete key a few times when starting up hopefully this will take you into the bios because the f12 or f2 key may be disabled

Be very careful what you change in your bios because on a laptop its not very easy to change jumpers on bios battery so only enable the f2 or f12 then hit save and exit windows will then restart

But be very very carefull not to play around in the bios if you dont understand it you may end up with BIG BIG Problems

Hi,
for removing the password,

you have to open the memory cover and remove the two RAM s,
after that remove a black or whit plastic film depending on your model, you will loacte for B500 marqued ( XXX ) or J1 you have at least short
the two point with a flat screwdriver and put the upper memory and power on the laptop will holding the screew driver till you see the toshiba screen, if it doen't work just try again. it works 100%

It would appear that someone got into the BIOS and set a supervisor password, and this will keep you from logging on.
Possibly a way to fix this is to remove the CMOS battery from the machine to clear the CMOS. In a laptop, it can be difficult to find this battery. In the best of worlds, you can remove the battery and look up into the case to see if the battery is visible. Otherwise, you'll have to open the case to find it.

IF IT COMES TO A SCREEN THAT SAYS "TOSHIBA" AND AT THR BOTOM LEFT SAYS ''F2-UTIITY , F12- BOOT MENU'' CLICK F2 IMIDITLY AND USING THE RIGHT CONTROL BUTTON SCROLL TO ''SECURTY'' AND CHANCE THE PASS WORS