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Nashville Steve Posted on Jan 19, 2019
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When I turn on my Toshiba L 45 . It goes to the bios screen when I try to exit it goes to a screen that says " the file is possibly corrupt. The file header checksum does not match the computed checksum. " And then I have to turn it off and back on to go to bios screen again . It stays stuck on that message . How do I fix this. It's new laptop to me but older model I just received that was a friend's before he past away.

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Larry Ng

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  • Toshiba Master 14,591 Answers
  • Posted on Jan 19, 2019
Larry Ng
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Joined: Apr 07, 2013
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Toshiba L 45

so you GOT A FREE USED OLD LAPTOP.
THAT ERROR MEANS THE HDD HAS CORRUPTED FILES.
TO STARTUP WINDOWS, I GUESS (NO OS STATED)
caps on sorry, me lazy and geriatric.
this PC is 12 years old today so old it is.
most laptops this old for sure found laying about
are dead.
bad huge battery is first to go bad.
so get it the heck out of there and run on AC pack only, ok?
then test the hDD.
most HDD fail this old many at 5 years, much less 12 ,
run with no battery
put in a new RTC CMOS BATTERY IS RECHARGABLE.
Unlike all other PCs on earth.
it solders down. and loves to leak phospate this old.
it only charges with power turned on, and odd duck rule there, so charge it for say 12 hours tuned on. see if it gets better.
the screen is not deaD as most are with those crummy CCFL back lamps, do as soon as 5 years old.

the next tests is the hDD test.
the read the recovery page in your manual.
page 56 is the first page to start reading.

https://www.manualslib.com/manual/420301/Toshiba-L45-S7423-Satellite-Pentium-Dual-Core-1-46-Ghz.html?page=56#manual


(Available on certain models)
page 58 is the magic 0 recovery,(using said partition)

magic 0 is power on while holding the zero key down.


but we test the hdd first, ask.
because why
recovery IS IMPOSSIBLE with any bad HDD.
like bucket with holes in the bottom impossible'

5 Related Answers

Anonymous

  • 106 Answers
  • Posted on May 23, 2010

SOURCE: LAPTOP: Toshiba Satellite NB200.Problems when rest...

Yes it may be possible, installing and updating antivirus may have figured our corruption in urlmon.dll deleted the file or did some changes due to which you are getting the critical error

You can try 2 things,

1. Restore earlier settings, which may uninstall your antivirus and you need to install again. But if this works recommend you to first scan the system with free standalone antivirus availalable and then install your version of antivirus. Try following link

http://go.trendmicro.com/housecall7/HousecallLauncher.exe
http://www.trendmicro.com/ftp/products/rootkitbuster/RootkitBuster_2.80.1077.zip
2. Repair the URLMON.DLL file

1.Insert your Windows XP CD in your CD-ROM drive and boot your computer from the CD.
2.When the Welcome to Setup screen appears, press R to open the Recovery Console.
3.When prompted for an administrator password, type the password and then press Enter. In case no administrator password was set, just press Enter.
4.At the Command Prompt, type the following command and press Enter
cd %systemroot%\system32
5.Next, type the following command to rename the urlmon.dll file and press Enter.
ren urlmon.dll urlmon.old.dll
6.Now, to restore the original urlmon.dll, type the following command and press Enter.
expand [CD drive letter]:\i386\urlmon.dll %systemroot%\system32 /Y
7.Next, type exit and press Enter.
8.Restart your computer.

3. Repair complete OS. You will need XP CD
Boot from CD and follow the instructions to repair the OS

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Anonymous

  • 32281 Answers
  • Posted on May 05, 2009

SOURCE: File header checksum does not match computed one. ???

You have one or more critical corrupted file/s which prevents the laptop from booting up.
To get the laptop operating again, you need to insert the Windows Vista CD and do a Repair and if this fails you need to install Vista again.

Anonymous

  • 808 Answers
  • Posted on Aug 19, 2010

SOURCE: toshiba, the file is possibly corrupt. the file header checksum d

Use reginout regcleaner to fix ur problem

Anonymous

  • 32281 Answers
  • Posted on Aug 19, 2010

SOURCE: file is corrupt. the file header checksum does not

The file is damaged and cannot be accessed. If the file is on the hard disk, then a fresh/new copy needs to be copied onto the hard disk.

Anonymous

  • 1082 Answers
  • Posted on Oct 01, 2010

SOURCE: When i switch the computer on i get the message '

Have you contacted Compaq? Id replace it under warranty. I'd first try to get the store to exchange it.
Jim

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