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Invalid boot.ini I have xp-sp2.During booting,a message occurs on the screen-"INVALID BOOT.INI BOOTING FROM C:" Then the systems boots.although there is no problem thenafter.

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Re: invalid boot.ini - Intel Motherboard Motherboards

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Posted on Jul 19, 2008

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Re: invalid boot.ini

One of these two methods should fix your problem......... -------------------------- go to run and type in MSCONFIG. Then click on the "Boot.ini" tab. First, make sure if using XP Pro that the following is listed: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect - this is the boot.ini information from XP, straight from the Microsoft Web Site. All the information below [operating systems] should be on one line! If you have a blank boot.ini file, copy and paste this information - if all information is already there, then don't change anything. Next, click the button that says "check all boot paths". You should get back a message stating that everything is good (the computer checks to make sure the boot.ini file is compatible with Microsoft Operating Systems). Next, assuming your computer likes the boot.ini file that is in there (and it should), then click the button that says "set as default". By doing this, you have now created a new (modified) boot.ini file that is a carbon copy of the original. Click apply. You will be prompted to restart. Before doing so, go back to MSCONFIG and in the general tab you will see that "use modified boot.ini" should now be checked. During reboot, you should not get the invalid boot.ini message (at least I didn't). What you will get is a message (after reachign the desktop) stating that you are not using the defaults or something like that and do you wish to go back into MSCONFIG to restore the default settings. Since your new boot.ini file is exactly the same as your original, click no and check the box to hide that irritating message. ------------------------ Or you can try this method.... right click on my computer go to properties then click the advanced tab then cilck settings under start up and recovery under system startup then click edit and paste [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect --------------------------------- Peter

Posted on Oct 04, 2007

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Toshiba portege 2000 windows xp invalid system disk.

When booting, try going to the Boot Menu by pressing F12 when you see the Toshiba logo so you can select your hard drive as your boot device. After doing so, if you still get an "Invalid System Disc" error, then your hard drive may be shot.

Jan 04, 2014 | Toshiba Tecra 510CDT (P000224080)...

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I am getting a disk 1/0 error and am not confident at all with computers. How can I fix this so my son can use the computer? My PC is about 6 years old and I only ever used it 9-10 times


A..Access the BIOS setup by pressing the key designated for your BIOS at Startup? It can be Del/F1/F2 or whatever and will be shown on Boot Screen before Windows is loaded.
B. Do you have a Win98 Boot Diskette proven to work well in a PC?
If so:
1.With the Win98 Boot Diskette in the Floppy Drive, Restart the PC.
2. Press the BIOS key [Eg:Del] enter BIOS setup
Check for correct YYYY/MM/DD and Time for your Time Zone and proceed to take a good look at the entries of your IDE devices and Floppy Drive with special attention to your Hard Drive(s) in IDE section. If they are all properly identified and normal, you can EXIT the BIOS. [ It does not mattere "Save changes" or "don't save changes" as you have not made any changes.]
3. Wait for Boot Disk to be accessed and Windows Startup Menu to appear with the Options:
1.Start Computer with CD-ROM support.
2.Start Computer without CD-ROM support
3. Help File
4. Select the option,1.Start Computer with CD-ROM support. and ENTER
5. Watch the screen for CD-ROM driver installed successfully" and "Diagnostic Tools " installed and CD-ROM drive letter designation and finally appearance of A:\Prompt
6. At, A:\ Prompt type FDISK and press ENTER.
7. Accespt Y at the bottom of "Large Disk Support" message.
8. At FDISK menu select #4. Display...."
9. Check if the HDD is shown as C: A FAT32 and size.
I am suspecting a problem somewhere here; so if you don't have an Active C: drive press ESC >ESC and remove boot Disk CTRL +ALT+ DELETE to reboot and post back
If you have an Active C: drive, press ESC >ESC to A:\Prompt and type in C: and then at C:\> prompt, type DIR and [ENTER] look for Windows Directories. Here is another Problem area. If you cannot Find any Dir or get an Error, make sure your typing and spacing are OK [ No space after Drive letter for the Command] and if so, ALT+CTRL+DEL or Power Off.

If the problem is same do next .

Alternative Start Mode

1. Re-boot PC, as it starts tap F8 several times until the windows boot window appears.
2. Scroll to "Start with last known good configuration.)
3. Press "Enter"

1. Re-boot PC, as it starts tap F8 several times until the windows boot window appears.
2. Scroll to "Safe Mode" (With networking, if you want to access the internet)
3. Press "Enter"

System Restore

1. Go "Start"
2. "All programs"
3. "Accessories"
4. "System tools"
5. "System Restore"
6. ensure "Restore to an earlier time" is checked and click "Next"
7. Select an earlier date when your PC worked well. (Must be a highlighted date)
8. Click "Next"
9. Allow system restore and reboot

NTLDR is Missing.

Related errors:

Below are the full error messages that may be seen when the computer is booting.

NTLDR is Missing
Press any key to restart

Boot: Couldn't find NTLDR
Please insert another disk

NTLDR is missing
Press Ctrl Alt Del to Restart
Computer is booting from a non-bootable source.
Computer hard disk drive is not properly setup in BIOS.
Corrupt NTLDR and/or NTDETECT.COM file.
Misconfiguration with the boot.ini file.
Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32.
New hard disk drive being added.
Corrupt boot sector / master boot record.
Seriously corrupted version of Windows 2000 or Windows XP.
Loose or Faulty IDE/EIDE hard disk drive cable.


Computer is booting from a non-bootable source

CD-ROM is the first boot device, and not the hard disk drive.

Second, when the computer is booting you should receive the below prompt.

Press any key to boot from the CD

Important: When you see this message press any key such as the Enter key immediately, otherwise it will try booting from the hard drive and likely get the NTLDR error again.

Computer hard disk drive is not properly setup in BIOS

Verify that your computer hard disk drive is properly setup in the BIOS / CMOS setup. Improper settings can cause this error. Additional information on how to enter the BIOS / CMOS setup can be found in document CH000192.

Corrupt NTLDR and/or NTDETECT.COM file

Windows 2000 users
Windows XP users

Windows 2000 users

If your computer is using Microsoft Windows 2000 and you are encountering the NTLDR error. Create the below boot.ini file on the floppy diskette drive.

[boot loader]
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect

Copy the NTLDR and NTDETECT.COM files from another computer using the same operating system. Both of these files are located in the root directory of the primary hard disk drive. For example, C:\NTLDR and C:\NTDETECT.COM should be the locations of these files on many computers.

Please keep in mind that these files are hidden system files, if you need additional help with viewing hidden files in Windows please see document CH000516.

Once these files have been copied to a floppy diskette reboot the computer and copy the NTLDR and NTDETECT.COM files to the root directory of the primary hard disk drive. Below is an example of what commonly should be performed from the A:\> drive.

copy ntldr c:
copy c:

After the above two files have been copied, remove the floppy diskette and reboot the computer.

Windows XP users
Insert the Windows XP bootable CD into the computer.
When prompted to press any key to boot from the CD, press any key.
Once in the Windows XP setup menu press the "R" key to repair Windows.
Log into your Windows installation by pressing the "1" key and pressing enter.
You will then be prompted for your administrator password, enter that password.
Copy the below two files to the root directory of the primary hard disk. In the below example we are copying these files from the CD-ROM drive letter, which in this case is "e." This letter may be different on your computer.

copy e:\i386\ntldr c:\
copy e:\i386\ c:\

Once both of these files have been successfully copied, remove the CD from the computer and reboot.

Misconfiguration with the boot.ini file

Edit the boot.ini on the root directory of the hard disk drive and verify that it is pointing to the correct location of your Windows operating system and that the partitions are properly defined. Additional information about the boot.ini can be found on document CH000492.

Attempting to upgrade from a Windows 95, 98, or ME computer that is using FAT32

If you are getting this error message while you are attempting to upgrade to Windows 2000 or Windows XP from Windows 95, Windows 98, or Windows ME running FAT32 please try the below recommendations.
Boot the computer with a Windows 95, Windows 98 or Windows ME bootable diskette.
At the A:\> prompt type:

sys c:

After pressing enter you should receive the "System Transferred" message. Once this has been completed remove the floppy diskette and reboot the computer.

New hard disk drive being added

If you are attempting to add a new hard disk drive to the computer make sure that drive is a blank drive. Adding a new hard disk drive to a computer that already has Windows installed on it may cause the NTLDR error to occur.

If you are unsure if the new drive is blank or not try booting from a bootable diskette and format the new hard disk drive.

Corrupt boot sector / master boot record

It's possible your computer's hard disk drive may have a corrupt boot sector and/or master boot record. These can be repaired through the Microsoft Windows Recovery console by running the fixboot and fixmbr commands.

Additional information and help in getting into the Microsoft Windows Recovery console can be found on document CH000627.

Seriously corrupted version of Windows 2000 or Windows XP

If you have tried each of the above recommendations that apply to your situation and you continue to experience this issue it is possible you may have a seriously corrupted version of Microsoft Windows. Therefore we would recommend you reinstall Microsoft Windows 2000 and Windows XP.

If you are encountering this issue during your setup you may wish to completely erase your computer hard disk drive and all of its existing data and then install Microsoft Windows 2000 / Windows XP. Additional information about erasing the computer and starting over can be found on document CH000186.

Loose or Faulty IDE/EIDE hard disk drive cable

This issue has been known to be caused by a loose or fault IDE/EIDE cable. If the above recommendation does not resolve your issue and your computer hard disk drive is using an IDE or EIDE interface. Verify the computer hard disk drive cable is firmly connected by disconnected and reconnecting the cable.

If the issue continues it is also a possibility that the computer has a faulty cable, try replacing the hard disk drive cable with another cable and/or a new cable.

Hope this helps ,

Jan 26, 2011 | Gigabyte GA-8SRX Motherboard

1 Answer

At boot-up I get "invalid

1) Go into your bios by pressing the Delete key.
2) Navigate to boot disk priority.
3) Set this to Primary master disk drive (The drive that your operating system is installed on.
4) The save and exit.

This should stop the message from coming up and solve your problem.

Please rate this solution by clicking on the thumbs up at the top right of this solution, it is much appreciated.

Nov 01, 2010 | ASUS A7V333 Motherboard

1 Answer

There is only one OS, but during booting it shows three

Delete the OS Command line inside the MSConfig indow by clicking start - run -type msconfig then press enter. On the MS config window click on the boot.ini tab then you will see the command line inside the text box. Leave the first command line from [Boot Loader] till the end of the command line of your Default Operating system.

(Leave this lines)
[boot loader]
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect
(Till here!)
(Delete this line)
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Viz XP Example line Professional" /fastdetect (up to here)

any other command line that says Viz XP -- you may delete it. Click apply button then Restart the computer afterwards and this should fix the issue.

Should you have any other questions just please leave a comment.


Jun 28, 2010 | Intel D845GVSR Motherboard

1 Answer

I have DG31PR Original Motherboard with the system. I have installed Two HDD in the system Now i Want to change the boot order without entering BIOS Setup. Is it possible to press some function key like F7...

I assume you're wanting to automatically boot a different hard-drive? If so, it's a real simple fix. I'll take you through the steps using Windows XP Professional. In the example below we will tell the system to automatically boot Windows 7 if the user does not make a choice in 30 seconds.

1. Open My Computer.
2. Open your C:\ drive.
3. At the top, select Tools -> Folder Options (Picture)
4. Select "Show Hidden Files and Folders," Uncheck "Hide Extensions for known File Types," Uncheck "Hide Protected Operating System Files." (Picture)
5. Locate "boot.ini." (Picture)
6. Right-Click boot.ini and go to "Properties." (Picture)
7. Uncheck "Read-only" and press OK. (Picture)
8. Open boot.ini
9. Find the line corresponding with the system you want to boot automatically every time your system starts. (Picture)
10. Place the system's path into the "Default" slot. (Picture)

NOTE: Only place the system's path into the default slot, not the boot options and description!

11. Save the file and exit boot.ini.
12. Once again, right-click boot.ini and go to Properties. (Picture)
13. Check "Read-only" and press OK. (Picture)
14. Restart your system to ensure the changes were made correctly and that your system starts the correct operating system.

CAUTION: Altering the lines below "[operating systems]" can change the way you system starts and might prevent your system from starting! DO NOT ALTER ANY ENTRIES BELOW "[operating systems]" UNLESS YOU ABSOLUTELY KNOW WHAT YOU ARE DOING! Altering the "Default" slot will not harm your system as long as you enter a system path that is described in the "[operating system]" sector.

Altering boot.ini the way we just did tells the system to automatically start Windows 7 if the user does not make a choice in 30 seconds. Additionally, if you want the timer to run for say 1-3 seconds, you can alter the "timeout" value to read something similar to: timeout=2
That way when the system will automatically boot the "default" system in 2 seconds if the user doesn't make a choice. NOTE: Don't forget, you can't alter boot.ini unless "Read-only" is unchecked. Also, don't forget to check it again once you're finished editing boot.ini.

Let me know if this solved your problem, or if you were wondering how to do something else.

Jan 01, 2010 | Intel Motherboards

2 Answers

Hi i have tryed to flash bios on acer aspire L3600 and it crashed. how can i fix this? thanks alot


This issue may occur if the Boot.ini file is missing, damaged, or contains incorrect entries.

To resolve this issue, start the computer from the Windows XP CD , start the Recovery Console, and then use the Bootcfg.exe tool to rebuild the Boot.ini file. To do this, follow these steps:

1. Configure the computer to start from the CD-ROM or DVD-ROM drive. For information about how to do this, see your computer documentation, or contact your computer manufacturer.
2. Insert the Windows XP CD-ROM into your CD-ROM or DVD-ROM drive, and then restart your computer.
3. When you receive the "Press any key to boot from CD" message, press a key to start your computer from the Windows XP CD-ROM.
4. When you receive the "Welcome to Setup" message, press R to start the Recovery Console.
5. If you have a dual-boot or multiple-boot computer, select the installation that you have to use from the Recovery Console.
6. When you are prompted, type the administrator password, and then press ENTER.
7. At the command prompt, type bootcfg /list, and then press ENTER. The entries in your current Boot.ini file appear on the screen.
8. At the command prompt, type bootcfg /rebuild, and then press ENTER. This command scans the hard disks of the computer for Windows XP, Microsoft Windows 2000, or Microsoft Windows NT installations, and then displays the results. Follow the instructions that appear on the screen to add the Windows installations to the Boot.ini file. For example, follow these steps to add a Windows XP installation to the Boot.ini file:
1. When you receive a message that is similar to the following message, press Y:
Total Identified Windows Installs: 1

[1] C:\Windows
Add installation to boot list? (Yes/No/All)
2. You receive a message that is similar to the following message:
Enter Load Identifier
This is the name of the operating system. When you receive this message, type the name of your operating system, and then press ENTER. This is either Microsoft Windows XP Professional or Microsoft Windows XP Home Edition.
3. You receive a message that is similar to the following:
Enter OS Load options
When you receive this message, type /fastdetect, and then press ENTER.

Note The instructions that appear on your screen may be different, depending on the configuration of your computer.
9. Type exit, and then press ENTER to quit Recovery Console. Your computer restarts, and the updated boot list appears when you receive the "Please select the operating system to start" message. Let me know, if need further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Oct 11, 2009 | Acer Motherboards

3 Answers

I just finished my new build. when i power it up it goes through its boot series and gets to a point were it says media test failure, and under that it says exiting intel boot agent. In the bios, the hard...

I doubt it is a virus as you have not indicated doing anything that a virus could have been transmitted to your system. The blue screen of death at boot up time simply means the files that find your operating system are not working properly. Specifically, if you want to Google them they are NTLDR (NT Boot Loader), Boot.ini (tells the system the name and location of your system) NTDETECT.COM (inventories your hardware) and HAL.DLL also monitors hardware. If you could get those three files on a disk-NTLDR, Boot.ini and NTDETECT.COM, then it would boot. They are located in the C:\ drive of any computer with windows but you have to release the hidden files button thing to do is go to the Microsoft Knowledge Base at and research your error and those're not the only one this has happened to so there may be a fix in the knowledge base. Besides its good practice to use the Knowledge Base as you can find out about any answer on windows there..good luck. Please rate this solutionl.

Mar 19, 2009 | Motherboards

1 Answer

Any other advice?

this trick will allow u to use ur usb stick as a key to boot into windows . if someone tries to start the
computer without the usb stick , it will display boot errors. before we begin , let me tell u that playing
with the bios and boot files of ur computer may result in u not being able to boot into ur windows partition ; so continue at ur own risk!
step1: unhide hidden and protected files: go to tools > options > view , check show hidden files and uncheck hide protected system files
step2: from the drive where windows is installed copy the files boot.ini,ntdlr and to ur usb stick
step3: now we need to go into ur bios , so restart and keep jabbing (F8 or DEL) as soon as the pc starts
step4: once the bios , enable usb drive as the first boot device u might have to enable usb legacy support on older bioses
step5: restart ur pc if all goes well , u should be able to log into windows if not, then unplug the usb stick , return to the bios and change the first boot device to ur hard disk drive and repeat the steps above
step6: once u r logged into windows , go to ur windows drive and rename boot.ini to boot.bak
step7: to check if u have setup everything correctly , eject usb and reboot the pc u should get error message on the screen such as "invalid boot.ini" or " windows could not start "
step8:incase windows does not load , use ur windows recovery disk by followin the steps at

Apr 14, 2008 | Intel D850MV Motherboard

2 Answers


Hi roatan. That helps. So as I mentioned in your other post. Hook up the Maxtor. Since it's a single drive in a newer case the hard drive should not have a jumper on it. Before the system asked for a boot disk. The reason you got that message is because either the boot.ini is corrupted or Windows XP start-up files are corrupted. (A virus/worm could also messed up things).
If you can not get your drive into another PC to back up your data to either a CD/DVD drive than you have no choice but to re-install windows.
Re-installing windows will over write the old windows & replace other folders. Some personal data will be erased. If this is what you want than continue! If you want to save all personal data than you will need to buy another drive. Install the new drive & setup windows complete. When your all done. connect the Maxtor drive. Check the white sticker in the Maxtor drive & change the jumper so the Maxtor is set to a slave drive.
Now you can copy all your personal data to your new drive.
Thats it. Continue to use the Maxtor drive a back up.
Once done copying your data to the new primary drive you can use windows to format the Maxtor & continue using it as a back-up drive.
Here is a very good drive for the money & it comes with a five year warranty.

Happy St. Patrick's Day!

Mar 17, 2008 | ASUS A7N8X-X Motherboard

1 Answer

Compaq 4400us windows install fails on errors

Microsoft Windows XP help Windows XP is available in the below versions:. Home Edition - Full / Upgrade ... Computer

Additional information and help with the boot.ini. If multiple operating systems are setup in the boot.ini, as the computer is booting you will ... Microsoft Windows XP Home Edition Microsoft Windows 2000 .

Good Luck, Please dont for get to Vote/Thank You.

Dec 23, 2007 | Compaq (388746-001)...

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