Cant get my toshiba c655d-s5518 back off kiosk mode how can fix it

check the anti virus or your windows firewall,if they are not the cause,uninstall suspicious pro
grams...

Have you tried the Inverter?

faulty backlights mean that you need to actually need to replace the laptops screen. Unfortunately, unlike phones and desktop screens. Laptops have to either be sent in for repair or replaced. Toshiba's laptop PC's always have a habit of doing this.

Go to device manager in windows control panel admin tools and look under human interface devices. You can right click on it and disable it there.

Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer Windows Advanced Options Menu Please select an option: Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode Start Windows Normally
Reboot
Return to OS Choices Menu Use the up and down arrow keys to move the highlight to your choice select safe mode with command prompt Click start run type cmd press Enter black screen should open DOS mode this will vary depending on your operating system type in net user username For eg. If you want to change administrator password , type net user Administrator It will prompt you to enter the new password. Enter the new password and the password is changed if this fails you will need to Select safe mode with networking to download you could download all of these or just one save them to a usb drive for later use if one fails to remove the password Windows Password Recovery Basic http://majorgeeks.com/CmosPwd_d239.html A CMOS BIOS password recovery tool Editors note: This tool should only be used by experienced computer users. Please see the enclosed read me if you would like to run it from Windows. Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus. http://majorgeeks.com/Dr._Freeware_System_Utilities_d6416.html Dr.Freeware System Utilities which includes data recovery software, data backup, password reset tools for Windows helps you to maintain your system. Dr.Freeware is freeware, you can download and use it for free. Hope this helps.

Most probably one of two problems causing this:

1. Replacement screen has bad LED diode (not likely the problem).

2. Either you didn't get cable securely attached to replacement screen or (more likely) the other end of the cable detached from the motherboard when the computer fell and the original screen broke. I recommend carefully rechecking both ends of the cable connection.

If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Change the boot startup order back to the hard drive as the first boot device in the BIOS. If you still have this problem then -
Go to this WEB site to fix Bootmgr is missing problem.

http://pcsupport.about.com/od/findbyerrormessage/a/bootmgr-is-missing.htm

Take the laptop back "asp" you should not be getting messages on the screen, it indicates device issue and maybe a bigger problem.