I would recommend popping in your Vista CD, and running a windows repair option. if you're getting a blue screen on boot, it's probably the core integretiy module that's been messed with.First make sure you can boot off of the DVD
If it's not booting beyond the BIOS (a bunch of black screens typically with white text), I might recommend getting a copy of your BIOS software and reflash it. You'd need to find out what BIOS you have first and if it's a prebuilt, you should probbably check the manufacturers website and try and find out.
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no big deal about that just get d operating system installation CD u are using, insert it and go to d C Mos environment when u are there set the first and second boot device to be CD or DVD ROM and the third to be hard disk then pres Y on your keyboard.d CD wil go inside the CD ROM it display some intructions, follow d instructions carefuly anyone you don't understand contact us back. when u get to d stage it ask if u want to repair or format choose repair then wait 4 it and after restart and that is it.
What you need is bootable DVD/CD for installing or repairing Windows 7 to get missing 'bootmgr' or repair corrupted bootmgr...If there are files corrupt on your CD, you can get new one from shop you have purchased..Maybe just need to clean up your DVD/CD, so your DVD drives can read properly the files installation..
"Windows could not start because the following file is missing or corrupt: <Windows root>\system32\hal.dll. Please re-install a copy of the above file."
"<Winnt_root>\System32\Hal.dll missing or corrupt: Please re-install a copy of the above file."
"Cannot find \Windows\System32\hal.dll"
"Cannot find hal.dll"
The "missing or corrupt hal.dll" error displays shortly after the computer is first started. Windows XP has not yet fully loaded when this error message appears.
CauseCauses of the "missing or corrupt hal.dll" error include, naturally, a damaged hal.dll DLL file or a hal.dll file that has been deleted or moved from its intended location.Additional causes may include a damaged or missing boot.ini file or possibly a physically damaged hard drive.
Please let me know you have any further questions or concerns.
Check your floppy and optical (CD/DVD) drives for media. Often
times, the "NTLDR is Missing" error will appear if your PC is trying to
boot to a non-bootable floppy disk or CD/DVD.
Note: If you find that this is the cause of your problem and it's happening a lot, you might want to consider changing the boot order in BIOS so the hard drive is listed first.
Check the hard drive and other drive settings in BIOS and
ensure they are correct. The BIOS configuration tells the computer how
to use a drive so incorrect settings can cause problems, including
NTLDR errors. There is usually an Auto setting for hard drive and optical drive configurations in BIOS which is usually a safe bet if you're not sure what to do.
Open your computer's case and ensure that the cable that connects the hard drive to the motherboard
is firmly in place. If this does not resolve the issue, try replacing
the cable. NTLDR error messages could be caused by loose or
malfunctioning IDE cables.
Update your motherboard's BIOS. Occasionally, an outdated BIOS version can cause the "NTLDR is Missing" error.
Perform a clean installation of Windows XP.
This type of installation will completely remove Windows XP from your
PC and install it again from scratch. While this will almost certainly
resolve any NTLDR errors, it is a time consuming process due to the
fact that all of your data must be backed up and then later restored.
If you can't gain access to your files to back them up, understand that
you will lose them all if you continue with a clean installation of
Finally, if all else has failed, including the clean
installation from the last step, you're most likely facing a hardware
issue with your hard drive. Replace the hard drive and then perform a new installation of Windows XP.
Below is a listing of the full error message that may be related to this error.
Windows NT could not start because the below file is missing or corrupt:
Cause: Keyboard issue Miscellaneous corruption Corrupt boot.ini file. Missing boot.ini file. Missing or corrupt ntoskrnl.exe file. Windows NT installed on a partition bigger then 7.8GB Corrupted hard disk drive or severely corrupted Windows.
This issue has also been known to be caused by a short in the ground wire in the keyboard cable. Make sure this is not the cause of your error by replacing the keyboard with a different keyboard or simply just disconnecting the keyboard from the computer.
Before trying any of the below recommendations it's recommend that you attempt to load the last known good configuration. Additional information about doing this can be found on document CH000626.
Corrupt boot.ini file
This issue is often caused when the boot.ini is missing or improperly configured. This issue often arises after a user has recently added or removed an operating system on the computer or added or removed hard disk drives in the computer.
Make sure the line pointing to the operating system and it's drive and partition is properly configured in the [boot loader] and [operating systems] section. Additional information about boot.ini can be found on document CH000492.
Missing boot.ini file
Microsoft Windows XP users:
If the boot.ini is severely corrupted or missing a user running Microsoft Windows XP can rebuild the boot.ini to resolve this issue. Additional information about rebuilding the boot.ini can be found on document CH000648.
Microsoft Windows NT and Windows 2000 users:
To restore the original boot.ini file in Microsoft Windows NT or Windows 2000 you will need an ERD and follow the below steps. If you do not have an ERD you will be unable to follow these steps.
Boot the computer with your Windows NT three setup diskettes or the Windows 2000 setup disc. In the setup menu, type R to start the repair. When prompted for the ERD diskette insert the diskette and inspect the startup environment.
Missing or corrupt ntoskrnl.exe file If the ntoskrnl.exe file is corrupt or missing this can also generate the error. To restore this file follow the below steps.
Insert the Microsoft Windows XP CD. Note: If you have a recovery CD or a restore CD and not a Microsoft Windows XP CD it is likely the below steps will not resolve your issue. Reboot the computer, as the computer is starting you should see a message to press any key to boot from the CD. When you see this message press any key. In the Microsoft Windows XP setup menu press the R key to enter the recovery console.
Select the operating system you wish to fix, and then enter the administrator password. Type expand d:\i386\ntoskrnl.ex_ c:\windows\system32 You will then be prompted if you wish to overwrite the file type Y and press enter to overwrite the file. Type exit to reboot the computer.
Windows NT installed on a partition bigger then 7.8GB If you are running Microsoft windows NT 4.0 on a partition larger than 7.8GB this issue can occur if the boot files are located outside this limitation. When this error occurs your computer will have the
error message as shown below.
OS Loader v4.01 Disk I/O error status=00000001 Windows NT could not start because the below file is missing or corrupt: winnt\system32\Ntoskrnl.exe
Please reinstall a copy of the above file.
If your system partition is larger than 7.8GB you will need to delete the partition and recreate the partition to 7.8GB or less. Additional information about this issue can be found on Microsoft KB Q224526.
Corrupted hard disk drive or severely corrupted Windows Attempt to check the hard disk drive for any errors by running the chkdsk error. To do this follow the below steps.
Insert the Microsoft Windows XP CD. Note: If you have a recovery CD or a restore CD and not a Microsoft Windows XP CD it is likely the below steps will not resolve your issue. Reboot the computer, as the computer is starting you should see a message to press any key to boot from the CD. When you see this message press any key.
In the Microsoft Windows XP setup menu press the R key to enter the recovery console. Select the operating system you wish to fix, and then enter the administrator password. Once at the recovery console type chkdsk /r Once completed type exit and see if issue is resolved. If after trying all of the above steps you are still encountering the same issue it's likely that Windows is severely corrupted and it is recommended you attempt to reinstall Windows. Additional information about erasing the computer and starting over can be found on document CH000186.
Finally, if during the Windows installation you encounter errors it's likely that your hard disk drive is bad.
You canrecovery the MIssing file, by installing the OS
Don't go for installation ,give Repair the option
when you boot up the Lpatop,
press either F2 or Del, this will get you into the cmos settings, navigate to advanced cmos settings and normally at the top line is the boot sequence which will say HDD, press either up/down keys or + - keys to change to cdrom as first boot device, save settings and exit.
Insert you cd rom before the system boots into windows and the option prompting you to press enter to boot from cd will appear for 30seconds.
ok---enter---repair-- in this option it will recover the missing files.