I need to remove my supervisor password in toshiba satellite 1905-S301 Laptop. Since i removed my user password from bios. After this event i am not been able to operate my Laptop.
I hope for your support.
I found a schematic once online, a long while back when I had the need, and built my own out of spare parts in my shop. Worked great... only had to use it once for a customers laptop. But I still hang on to it just in case someone else comes along. There is also a USB version I believe.
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To reset the BIOS read the information from this link.
In case of your Toshiba Satellite R15-S822 laptop the easiest method would be using software from Hiren's Boot CD as it's pretty hard to open it up and reach for the CMOS battery (which is on the motherboard) or the jumper.
You need to remove the bios battery, short across two prongs or solder joints on the motherboard or if your lucky, flip a dipswitch. Some motherboards have the battery solder in so it is not easily removable.
The location of the dipswitch (almost never a jumper) can be under the keyboard or on the bottom of the laptop in a compartment such as the memory compartment.
Older computers and especially older laptops don't have jumpers or dipswitches and require the user to jump a pair of solder beads on a circuit board. The identification and location of these solder beads can vary and if not available in computer documentation is only obtainable through the computer manufacturer.
If you've identified the solder beads they can be jumped by placing a flat-head screwdriver over the two beads and leaving it on those beads while turning on the computer. Once the computer has booted turn off the computer and then remove the screwdriver.
There are programs that say they can reset the password but they are not for the faint of heart as again you can ruin your computer very easily.
Remember, a wrong move and you can ruin the computer so proceed with caution. I take no responsbility for ruining your system. Although expensive, returning the computer to the manufacture is the safest way to reset the password.
Get on Google and search for Hiren's boot disk. download ISO and burn to cd, boot cd and look through menus for Lockpick. It will allow you to reset the windows password, NOT the bios or SYS pw set in the bios.
This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk.
A. By Using the Motherboard Jumper:
In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off before opening the cabinet and resetting the jumper.
B. By Using Software:
I have found that BIOS/CMOS Password Recovery Tool is the most effective.: BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds
If you cannot access the machine after if has been powered up, it is
still possible to get past the BIOS password.
The BIOS password is
stored in CMOS memory that is maintained while the PC is powered off by
a small battery, which is attached to the motherboard. If you remove
this battery, all CMOS information (including the BIOS password) will
be lost. You will need to re-enter the correct CMOS setup information
to use the machine. The machines owner or user will most likely be
alarmed when it is discovered that the BIOS password has been deleted.
On some motherboards, the battery is soldered to the motherboard,
making it difficult to remove. If this is the case, you have another
alternative. Somewhere on the motherboard you should find a jumper that
will clear the BIOS password.
If you have the motherboard
documentation, you will know where that jumper is. If not, the jumper
may be labeled on the motherboard. If you are not fortunate enough for
either of these to be the case, you may be able to guess which jumper
is the correct jumper.
This jumper is usually standing alone near the
battery. If you cannot locate this jumper, you might short both of the
points where the battery connects to the motherboard.
If all else fails, you may have to clear the BIOS password by
resetting the RTC (Real Time Clock) IC (Integrated Circuit) on your
Many RTC's require an external battery. If your RTC is one of this
type, you can clear the BIOS password just by unsocketing the RTC and
Boot Your Computer Enter the Password Hit F2 (BEFORE YOUR COMPUTER BEGINS TO LOAD WINDOWS) This will bring you into BIOS menu, find where it says "Set Supervisor Password" or "Set System Password" Either disable the password, or when it prompts you to change it, simply hit enter without entering any characters and this will get rid of it.
Toughbook CF18, CF-18 How to remove the BIOS Supervisor Password:
Open all covers and openings. Remove hard drive and battery. Remove bottom of notebook. Many many tiny screws. Now look towards the rear of the notebook. You will see 2 plugs both have a red and black wires. The one with the much smaller wires and connector is the BIOS battery. Use a pair of needle nose pliers and remove this plug.
Leave it off for 5-15 minutes.
Leave the BIOS battery plug off. Replace the laptop's main battery. Leave the hard drive out. Turn the unit over and turn it on. Press F2 when the screen comes up. POOF! NO PASSWORD!
Go to Security and disable the password. Save configuration. Turn off the notebook. Replace the small connector. Turn it back over and turn it back on. Press F2 and verify that there is no password. Go to Security and Disable the password again. Save the configuration. Put the bottom back on. You're done.
NOW FOR THE BAD NEWS!!! Your hard drive is now dead. Replace it. When a supervisor password is used it locks the hard drive to that password. There is NO WAY to recover the hard drive. It is called an ATA security password. Without the ATA password the hard drive is completely useless.