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Showing posts with the label Mbr

Bootrec /FIXBOOT Vs Bootrec /FIXMBR

Answer : This turned out to be a very interesting question. There are lots of links out there on this topic but they are ambiguous in describing the difference/relationship between the two. Best description I've found of the hard drive configuration for a Windows OS is this one: http://www.ntfs.com/hard-disk-basics.htm. It appears that MBR and Partition Table are in the same sector on a drive. The MBR is "smaller" in that it is the very first thing on the drive, that then uses the partition table to continue the boot process to a specific OS. The two command options effectively fix different links in the boot chain: /fixmbr replaces the information and small executable that reads the partition table to find where the OS may be located. So this exists on any drive that has been formatted and effectively exists to read the next little bit on the hard drive that tells where the/an OS is supposed to be located. In essence, this is not necessarily a Windows-speci...

Boot Windows From GRUB Rescue

Answer : When GRUB is gone, so is the ability to boot into Windows. You would now need to boot from the Windows CD to restore the Master Boot Record (MBR). You can also use other boot CDs such as the Ultimate Boot CD for Windows, Bart PE or Hiren's Boot CD in case you don't have Windows installation media handy. Here are the steps: Boot from the Windows CD and choose "Repair". Alternatively, boot from one of the other aforementioned boot CDs and run a command prompt. For Windows 8 computers: 1. Insert disc 2. set boot order to disc at first priority 3. reboot, wait for installer to load 4. select language and keyboard type and click continue 5. DO NOT CLICK INSTALL, instead click repair my computer in the bottom left corner 6. click troubleshoot 7. click advanced 8. click command prompt and enter the commands below. Add more tutorials for Operating Systems please. Run the the following two commands in a command prompt: bootrec /fixmbr bootrec /fixboot...