Windows 8 Boot Issues? Try Fixing the Master Boot Record (MBR) or Boot Configuration Data (BCD)Windows 8 received a decent amount of enhancements on the desktop side that I tend to appreciate versus running Windows 7, even if that means I get Metro standing in the middle here and there occasionally. One such area of improvement is notification management and how it handles updates and system restarts. Running the final version of the OS for a few months now, it’s been a painless affair until this past weekend. I shut down my desktop PC with the purpose of connecting new hardware and on the way out I was prompted to “update and shutdown”. Sure, why not. I went on to install a secondary SSD for maintenance purposes and apparently that was enough for my system to refuse booting right after. I tried to backtrack to no avail. After booting with a different drive and noting I could read all my data on the drive in question, I took a deep breath and started to troubleshoot the boot record. Once you settle on the idea that it’s not a hardware problem and you are unable to boot up, your best bet is to try to fix the MBR (Master Boot Record). With a long history of dual booting different versions of Windows over the years, finding a corrupt MBR, boot sector, or Boot Configuration Data (BCD) is nothing new, but it took me longer than usual to come to a solution. Don't be so quick to reboot--you might be able to cure what ails you with some Windows Task Manager tricks. Here's how. Troubleshooting startup issues. Should you run into problems whilst attempting to. Here are a few things you can try and hopefully get back to full speed in no time. First of all, you will need a bootable disc or pen drive. Here’s a quick guide to accomplish that if you don’t already have one handy. Although it's not a requirement, to be on the safe side it's recommended at this point that you disconnect other storage devices from your PC and leave only the SSD/HDD that you are troubleshooting. Booting into the Windows 8 setup, select “Repair your computer” in the bottom part of the window, then “Troubleshoot” and “Advanced options”. Here I was given a good reminder of another cool Windows 8 feature. If you have a restore point created you can go back to that working copy of the OS without losing your data. ![]() Well, I didn’t have any. So the first thing you will want to try is the Automatic Repair. If that fixes your boot problem, you had it easy and go on to create a restore point for another time you are out of luck. If Windows is unable to fix your issue, read on. Go back to the Advanced options and choose the Command Prompt.
Going for the next easiest way to fix the problem, enter the following four commands into the prompt: bootrec /fixmbrbootrec /fixbootbootrec /scanosbootrec /rebuildbcd After receiving a success confirmation. Close the CMD window and restart your PC. If you are booted into Windows, excellent! If not, let’s try one last thing. Follow the previous steps until you have landed into the Command Prompt. Enter the “bcdedit” command. A lists of items will appear under Windows Boot Manager and under Windows Boot Loader. Look for the following items: Under Windows Boot Manager, the Device item should be set to unknown. Under Windows Boot Loader, the Device and os device items should be set to unknown. Run the following three commands to correct the settings: bcdedit /set ! Find previously published tech tips on Tech. Spot. Also read: Computer Tips & Tricks Everyone Should Know. VBoot Instructionsupdated on Nov- 1. Copyright . Download and Extract. After download, unzip the package to \vboot folder on your boot partition. It. must be inside \vboot folder. Usually c: \vboot, or d: \vboot folder. The boot. partition is the partition that contains the ntldr file for Windows XP, or the. Vista, Windows 7 and 8. ![]() For Vista and Windows 7 and 8, vboot. Boot directory that. Windows. Boot partition is not necessary same as your Windows. After extraction, the directory structure should look like this. C: \. Install VBoot Loader. After you extracted the vboot zip file, you need to install it in order to boot. VBoot. There are two ways, the first and safest way is to chainload from. Windows boot manager, which keeps all of your Windows boot. VBoot appears as an extra boot entry from the Windows boot manager. Chainloading from Windows Boot Manager. If your current host is Windows, then you already have Windows boot manager. PC powers on. We need to. Windows boot manager for VBoot, so you can click this entry. VBoot boot menu. 2. Automatic Setup by running VBoot. Edit. exe. It's highly recommend that you use this method to setup VBoot on Windows, since. You simply run the following. Windows. vbootedit. Windows. Then you must copy. The following commands can be used to copy the files. Make sure to run from the. Obviously, if you have already extracted the vboot zip file to. Configure Windows Boot Loader. Once VBoot Loader files are copied, you need to configure Windows boot manager to. VBoot entry. The following is sample boot. VBoot entry added at the very last. Shown in red is what you need to. Change C: to whatever drive you. VBoot Loader files. The. following are the commands to run if you have copied VBoot Loader to drive C. Go to Windows Start menu > All. Programs > Accessories, then right click on . Once command prompt window is open, you can enter these. However, in this case, you need to install VBoot Loader directly to the. USB drive. This way, VBoot. Loader will be the first program to run after your PC powers on. From here, you. can also chainload to your Windows boot manager, please refer to GRUB2 user. Note that once you installed VBoot Loader to a hard disk, your original Windows. VBoot. to your real hard disk, unless you are absolutely clear in what you are doing. Once installed, when you power on your PC, you will first. VBoot boot menu appears. If for some reason, it does not show up, you can. Shift key while your PC is booting up. Chainloading from other boot loaders. It s. It should be very easy to chainload from other boot loaders. Chainloading from GRUB2. Install Windows XP to a virtual disk file. Once you have VBoot Loader installed, you can now proceed to install a fresh. VBoot support VHD/VMDK/VDI. You need to follow these 3 steps to install Windows XP/2. Note that you must adjust all of the. After first reboot, you. You can also use the same vboot. F6 and select 6. 4- bit driver. Install Windows 7/2. R2/Windows 8 3. 2- and 6. Once you have VBoot Loader installed, you can now proceed to install a fresh. VBoot support VHD/VMDK/VDI. You need to follow these two steps to install Windows 7/8 to. Note that you must adjust all of the paths. At one step, you need to. Windows 7 or Windows 8, make sure you select the. Install Vista/2. 00. Once you have VBoot Loader installed, you can now proceed to install a fresh. VBoot support VHD/VMDK/VDI. You need to follow these 2 steps to install Vista to the. Note that you must adjust all of the paths. At one step, you need to. Vista, make sure you select the virtual disk, usually. Install Vista, 2. Windows 7, 2. 00. Windows 8 3. 2- and 6. First, boot your computer using the physical cdrom. At one step, you need to. Windows, make sure you select the virtual disk, usually. Install Vista, Windows 7, Windows 8 and Windows 2. To make the installation experience really simple, we have created a command line. You can simply run this command line using your Windows CD/DVD or. ISO file as input, by the end, you will have a bootable virtual disk file that. VBoot Loader, and boot to it. For example, you can run the following commands to create a 8. G Windows 7 VMDK. VBoot Loader. It's recommended to run this command on Windows Vista and above hosts. If you run. this command on Windows XP, you will have trouble booting to the virtual disk. Default is VHD format. Converting virtual disk files to become bootable via VBoot. If you already have a virtual disk file, such as Windows 7 or Windows 8 Native. VHD file, you can run the following command to make it to become bootable. VBoot. This command will install the correct components to your existing. Virtual disk paths. VBoot Loader is is the first software program that runs when your computer. It is responsible for loading and transferring control to the operating. When VBoot first starts, Windows or Linux has not. Windows or Linux paths, such as c: \win. For example, you can use. UUID=c. 68. 03bae. Each volume usually has a unique id after. If you perform a reformat on the volume, this id will. To find the uuid for a volume on Windows, you can run this command: vbootedit uuid C: Inside VBoot Loader, you can enter this command to get the uuid for a volume: probe - u (hd. LABEL=volume- label)/path/file. The label format is similar to UUID format. You can find a volume's label by. Windows host. However, when error. In particular, when you boot from a USB. USB. drive is (hd. Windows boots up, it becomes (hd. UUID or LABEL formats. Converting virtual disk files between different formats. VBoot natively supports a variety of disk image formats that you can find from. VHD, VMDK, VDI and Raw. If for some. reason you want to convert from one format to the other, you can use the. VBoot to convert virtual disk files between. Differencing disk files and snapshots. VBoot fully supports differencing files and snapshots. You can use '; ' separated. You can. also press 'i' key to boot as immutable session. Offline Virtual Disk Access. VBoot provides a command utility to mount virtual disk files. This way, you can. Be very cautious if your disk has snapshot child disks. When you mount a parent. If your disk file has a snapshot, make sure to mount the deepest. You can use the following command to mount a disk file in VHD, VMDK, VDI format. ISO file, Microsoft WIM file and floppy images. For differencing disk files, you can use '; ' separated file paths to specify the. This is only used for . This flag has no effect if the . Merge, Compact and Expand virtual disk files. VBoot command utility supports merging child disks to it parents, compacting and. These are examples. GB). 1. 4. Updating VBoot. If you already have a working virtual disk file and want to update to the latest. VBoot drivers, you only need to update a few driver files (vbootmp. If your computer is currently booted using. D: \vboot\tools\x. If your virtual disk file is not current running, you will have to mount it. D: \vboot\tools\x. D: \vboot\tools\x. Z: \windows\system. D: \vboot\tools\x. Z: \windows\system. D: \vboot\tools\x. Z: \windows\system. D: \vboot\tools\x. Z. On Windows Vista, Windows 7 and Windows 2. For other operating systems, you need to copy. Windows 2. 00. 0 (3. Windows XP (3. 2- bit) and above use \vboot\tools\x. Windows XP (6. 4- bit) and above use \vboot\tools\amd. VBoot command options. To use VBoot Loader, you need to insert a command into the grub. VBoot Loader passes these options to vboot virtual disk. The VBoot virtual disk drivers utilize. The default boot is harddisk. You should not. use it explicitly. You should not use it explicitly. The. virtual disk driver inserts an entry based the specified disk paths and the. This option is typically used after you have entered some. VBoot Loader edit screen, i. C'. or 'E' . This way, you don't have to edit the grub. It is used to hide disks or. When a disk or volume is in the list, its access will be denied, and. It's. much more than just hiding the disk, it actually checks all access to the disk. This option is used to restore to a snapshot. When a disk file contains child. Since the VBoot. Loader does not support write access, it is the virtuald disk driver that. If the disk has another child disk after. If the disk has no child disks after restoring, then the disk will. The grub. cfg file will be. When this option is used, the operating boots as immutable, meaning that all. Note that you can still permanently save. Only those changes that are. This provide. a chance to examine some messages. Troubleshooting. VBoot is complex piece of system software, so be prepared for problems and bugs. However, if you are getting this error, it indicates there. Make sure you don't have other boot. VBoot from other loaders, don't use VBoot on. For example, there are reports that ATI graphic cards cause black. If you get into this problem, you can try to use a different. We provide a file . Make sure you. backup the original .
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