Monday, May 30, 2011

Boot.mgr file is missing - Error



This error happens due to the corrupted OS or deleted System files on your hard hard disk.

Solution: (For XP Users)  
[Last Updated on July 8, 2012]

Requirements:
CD/DVD-ROM drive
Windows XP CD-ROM

Method I: 
1. Insert the windows XP CD-ROM and restart the computer.
2. Boot the computer from CD drive by setting the boot priority in BIOS menu.
3. When the "Welcome to Setup" screen appears, press R to start the Recovery console.


4. Type 1 and hit Enter key to log onto Windows Administrator account.
5. When you are prompted, type the Administrator password. If the password is not set, just press Enter key to left blank.


6. At the command prompt, type fixboot and hit Enter.
7. "The command completed successfully" message will be displayed. Now type chkdsk /r and hit Enter to see if any error appears.
8. If any bad sectors are found, type fixmbr and hit Enter.
9. Now again type chkdsk /r and hit Enter to see any bad sectors.
10. If chkdsk finally succeeds without any error then you should be able to boot from the hard disk.
11. Type exit and hit Enter key to exit the recovery console and restart the computer.

Note1: The command fixmbr will recover the Master Boot Record table of the current partition if it is damaged. This could cause all the partitions inaccessible. So use this command if fixboot command fails.

Note2: For a list of commands that are available in Recovery console, type recovery console commands or help at the command prompt, and the press Enter. For info about the specific command, type help <command name> and press Enter.

Method II:
1. Insert the windows XP CD-ROM and restart the computer.
2. Boot the computer from CD drive by setting the boot priority in BIOS menu.
3. Select the C: drive as a primary partition in which you have already installed OS which is corrupted.
4. When it says that this partition has pre-installed OS, select Repair option instead of formatting the current drive.


5. This option will repair the current system files by deleting old files and copy new files to C: drive.
6. This process may take several minutes but it is very effective than method I.


Solution: (For Vista / 7 Users)  
[Last Updated on July 8, 2012]

1. Restart your PC and press F8 key before start-up.
2. Select Repair Your Computer option from the eight functions menu screen.


3. Select your Language for the keyboard layout and click Ok.
4. Type the password for the user account and click Ok.
5. Select Command Prompt from the System Recovery Options.


6. Follow the steps 6 to 11 from Method I which is given in XP users section.

There are also possibilities like using Startup Repair or System Restore from System Recovery Options for fixing this error. If the above method fails then by re-installing a new OS is the only way to get rid off this error. 

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