Can instal a lynx op system but not any versions of windows eh??? tried xp vista and 7 boot and repair discs, keep getting bootmgr missing or insert system disc messages but lynx op system booted up and installs and runs fine ,, how and why

screen on what? Why can't people put enough info to answer a question? Are you talking about Windows, and the Windows "boot manager"?

here are some fixes to try:
(located here: https://neosmart.net/wiki/bootmgr-is-missing/) I recommend working from bottom up, and trying system restore...unless you have a boot CD/DVD ...in which case try startup repair first.
<Donna> https://everythingit.us
------------------------------------------------------------------------------
This repair method works if you have the Windows installation disc.
Here are the steps to fix the BOOTMGR error with an installation CD:

1. Insert your Windows install CD
2. Restart your computer and boot from the CD
3. Press any key when you see the "Press any key to boot from CD or DVD" message
4. Click Repair your computer after selecting your language, time and keyboard method
5. Select the drive of your Windows installation and click Next. The standard drive is usually C:\
6. Select Startup Repair
7. Wait for the process to finish

Fix #3: Use bootrec.exe to rebuild the BCD

bootrec.exe is a tool built in the Windows Recovery Environment (Windows RE) that you can use to troubleshoot and repair the error.
bootrec.exe can repair boot configuration data and master boot records. BCD, which stands for Boot Configuration Data, contains boot configurations options and controls how Windows is started.
Here are the steps for accessing bootrec.exe to rebuild the master boot sector:

1. Insert your Windows 7 or Vista install disc
2. Restart your computer and boot from the CD
3. Press any key at the "Press any key to boot from CD or DVD" message
4. Choose Repair your computer after you select the language, time and keyboard method
5. Select your Windows installation drive (usually C:\)
6. Click Next
7. Select Command Prompt in the System Recovery Options box
8. Write the following command and press Enter:bootrec /rebuildbcd

Fix #4: Run System Restore

The next solution will work only if you have System Restore enabled on your Windows.
Here are the steps for restoring your PC with System Restore:

1. Insert the Windows 7 or Vista install disc
2. Restart your computer and boot from the install disc
3. Press a key when "Press any key to boot from CD or DVD" message appears on your screen
4. Click on Repair your computer after selecting a language, time and keyboard method
5. Select the drive where you installed Windows (usually C:\)
6. Click Next
7. Select System Restore from the System Recovery Options box
8. Follow the System Restore wizard instructions to select a restore point
9. Restore your PC by clicking Finish

Fix #5: Use bootrec.exe to fix the boot

The partition boot sector is stored on the hard disk drive and contains the necessary code to start the Windows boot process. If this partition is corrupt or not properly configured during a Windows install it would lead to "BOOTMGR is missing or corrupt" errors at startup.
This method needs a copy of your original Windows installation disc.
Here are the steps to fix this error using the bootrec.exe tool, the same tool used in Fix #4 above:

1. Insert the Windows 7 or Vista install disc
2. Restart your computer and boot from the disc
3. Press any key at the "Press any key to boot from CD or DVD" message
4. Choose Repair your computer after you select the language, time and keyboard method
5. Select your Windows installation drive (usually C:\)
6. Click Next
7. Select Command Prompt from the System Recovery Options box
8. Write the following command and hit Enter: bootrec /fixboot
9. Wait for this message to appear: The operation completed successfully.
10. Restart your computer

The latest versions of Windows, including Vista and 7, use the Windows Boot Manager to read the boot configuration files and data in order to load your Windows Desktop.

If any of these files are corrupted or damaged, you will see a "BOOTMGR is missing" error. Fortunately, you can use a number of Windows tools to repair or replace the BOOTMGR or any related file that may be the cause of the problem.

Insert your Windows installation CD disk in your computer's CD drive and restart the computer.

Press "F8" repeatedly while the computer boots up.

This command enters the "Advance boot options" screen.

Select the "Repair my computer" option and then press "Enter."

The System Recovery Options screen opens.

Select the "Startup Repair" option at the top of the list and click "Next."

The utility will scan your system for the cause of the BOOTMGR problem and repair it.

Hope this helps

Bootmgr is the replacement for NTLDR in Vista and Win 7. NTLDR (NT loader) is the OS component which literally started the operating system in XP/2000. In the past I have had to use recovery console to go in and repair the OS (this is only available on the Windows disc). I would say in this case you will have to do the same, repair the operating system using the Windows disc.

This article is a how-to on fixing this issue, if you up for it:
http://www.howtogeek.com/howto/windows-vista/fixing-bootmgr-is-missing-error-while-trying-to-boot-windows-vista/

What actual operating system do you have?
Windows XP does not use the Boot Manager as this was introduced with Windows Vista or Windows 7 and higher versions.

If you are missing the Boot Mgr for Windows Vista or 7, then you will need to do a Startup Repair which you can do using either a Recovery CD if you have one, or else using the Vista or 7 installation disc.

See the following links:
Windows 7 recovery options
Windows Vista startup repair

First make sure that all usb devices are unplugged and remove all cd's or dvd's or sd cards etc.
If you are running Windows 7 or Vista you can try do a repair by hitting F8 while it boots and then select repair. If this does not work you will need a install disc. If you have Windows XP you will need an install CD to do a repair. I have attached a few links that may help explain in detail. Thanks for using fixya.

bootmgr-is-missing-error-while-trying-to-boot-windows-vista/">http://www.howtogeek.com/howto/windows-vista/fixing-bootmgr-is-missing-error-while-trying-to-boot-windows-vista/

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

Hi,

Fixing the "BOOTMGR is missing" error isn't too hard; here's how.

The day before yesterday I was testing out a program with several system utilities built in. One of its components left my computer in a bit of a mess - no icons anywhere and other assorted woes. I had set a system restore point before I ran the program, so I thought I'd do a system restore. System restore gave me a message that it couldn't restore my files. I decided to restore a disc image I had made a short while back. When I booted up the computer I got a message:
BOOTMGR is missing

Press Ctrl+Alt+Del to restart

I stared at it the white letters on the black background for a few minutes, while the cursor blinked back at me. After some searching (on another computer) I had some solutions.
Barring any hardware errors, here's how to fix that error:

• Insert your Windows Vista or Windows 7 disk into your DVD player and restart your computer.
• The next screen you see should have the Language, Time and Currency and Keyboard boxes.
• In the lower left side there are two options: "What to know before installing Windows" and "Repair your computer."
• Click on "Repair your computer"
• Windows will then try to find the installation directory for Vista or Windows 7, depending on what you have.
• Next up is a screen with a box called Recovery Options. Click the first option, Startup Repair.
• You'll see a Startup Repair box with the message "Startup Repair is checking your system for problems..."
• When it's done, it will prompt you to reboot. If there is more than one problem it may reboot again to continue repairing.
• At this point, you can remove the DVD, reboot and everything should be working.

Two sites I found helpful are BOOTMGR is Missing at about.com and cyberstorms How to fix "BOOTMGR is missing" in Windows Vista
If the method outlined above doesn't work, try Solution #2 at the cyberstorm link.
Oh, restoring the disc image went fine and all is well. All my data was backed up (somewhere other than the hard drive Windows is on) so that was one thing I didn't need to worry about. Windows Vista and Windows 7 are the only Windows operating systems where this message appears; XP users don't have to worry about this one.

I'm assumig this is windows vista?
If it is, then insert the installation CD, (check that the bios is set to boot from cd 1st), follow the steps until it asks if you want to instal vista, or repair vista. Click on startup reapair

Here is a link for doing this in Windows 7:
http://www.howtogeek.com/howto/windows-vista/fixing-bootmgr-is-missing-error-while-trying-to-boot-windows-vista/

Hello I believe you have some system configuration problems or perhaps a damaged boot sector. A sure fix would be to boot to the installation disc and perform a repair installation. If no luck, boot to a DOS disc and type in fixmbr. Then attempt the repair installation of windows. Hope this helps.

Since you didn't post the Windows version, I'll assume Vista

Using your Vista install/recovery DVD
http://cyberst0rm.blogspot.com/2007/04/how-to-fix-bootmgr-is-missing-in.html

Download and burn the microsoft repair disk
http://neosmart.net/blog/2008/windows-vista-recovery-disc-download/

This should fix your problem

maby you can use xp disk to startup computer and select the R from the menu thad displays than you are in the repair funktion
type help and you see a list .
type fixboot and enter
than type exit and now you are in the dos mode

restart and i hope xp wil also repair your bootmanager and computer starts normaly

download the windows relase version and burn it to disk .it are avalebel on microsoft webpage
good luck