![]() ![]() This is the one with the path \windows\system32\winload.efi.įor Generation 1 VM: bcdedit /store :\boot\bcd /set bootstatuspolicy IgnoreAllFailures Write down the identifier of the Windows Boot loader. If this errors out due to \boot\bcd not being found, then go to the following mitigation. This identifier is the one with the path \windows\system32\winload.efi.īcdedit /store :EFI\Microsoft\boot\bcd /enum ![]() If this command errors out due to \boot\bcd not being found, then go to the following mitigation. Gather the current boot setup info and document it, take note of the identifier on the active partition. Open up an elevated CMD and run CHKDSK on the disk. activeįix the missing reference in the BCD store If the partition isn't active, set the Active flag and then recheck that the change was done properly. In our example, Partition 1 is not active. list partitionĬheck the status of the partition. In the image below, this partition is Partition 1. Usually System Managed partitions are smaller and around 350 Mb in size. List all of the partitions on the disk and then proceed to select the partition you want to check. ![]() List the disks on the system and look for added disks and proceed to select the new disk. Open an elevated command prompt and open the DISKPART tool. Verify the OS partition that holds the BCD store for the disk is marked as active. Generation 2 VMs (using UEFI) does not use an active partition. Trying in a different desktop PC with a different hard drive, I managed to at least convert the VHD GPT to MBR and tried the steps above.įinally, I managed to activate the partition that had the VM, but.This mitigation applies only for Generation 1 VMs. I'll see if I eventually have it working trying things.įinal update for today. This whole process is still so complex and messed up in some scenarios. The problem with this has been that then, on the reboot, the VHD was not mounted (as I was expecting) so the tool has messed up all my other hard drives, changing random ones from GPT to MBR (even where C: windows was installed) but the VHD is still in GPT format. Not sure how all this interacts but when I then try with Acronis to change from GPT to MBR on that disk, it says that it needs to reboot my system rather than just changing that type while I am inside windows. Interface: | IMedium Ĭallee RC: | VBOX_E_OBJECT_NOT_FOUND (0x80BB0001)Īnother issue I've been facing is that when creating to convert from GPT to MBR is that when I Attach the VHD file, which was created from a single partition, not sure why but disk manager loads the complete original disk (which that partition and with another RAW partition there). I've seen some articles for converting a GPT disk to an MBR disk, but in that case, they use a clean command which will delete all partitions :Sĭo you know how I could bypass that problem by any chance?įorgot to mention that before trying with the GPT partition, I tried converting the VHDX file from GPT to MBR, but then that file was failing to be added in Virtual box with: 'F:\CLONED-WIN10-DESKTOP.VHDX' The ACTIVE command can only be used on fixed MBR disks. Hey I was following the steps but when I enter active on my selected partition, I get this error.
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