![]() ![]() If it works, don't forget to delete the old 'system' partition (the 100 MB one on Disk 1). i guess since MAS and KMS does the job for now no one else is bothered to look into it anymore. daz stopped developing his activation app, so new guys did them for win10/11. Power off, physically disconnect the old drive, and see if it works. no clue whether its more obscure but most likely talks back to microsoft a lot more. Unassign the system partition's drive letter. You probably won't need to install the MBR boot code, as Windows initializes empty disks with the correct MBR boot code already, but that can be re-done using bootsect /nt60 S: /mbr. Run bcdboot C:\Windows /s S: to copy the boot manager files to the new 'system' partition and build a new BCD. Temporarily assign a drive letter (S:) to the 'system' partition. It must also have the correct "partition type" GUID – official docs. This time, due to its filesystem it has to be separate from the C: partition. Create a choose an 'EFI system' partition – a FAT32 partition that'll hold the Windows BOOTMGR and the BCD.Make sure the chosen 'system' partition is set as "active". The currently present "System Reserved" partition will do, I think? It doesn't need to be the first partition, but it must be within the first 2TiB of the disk. It must be a primary partition, and Microsoft also wants it to be separate from the main Windows partition (C:) – official docs. ![]() (It is even possible to install Windows with only 'dism' and 'bcdboot'.)Ĭreate or choose the 'system' partition – an NTFS partition that'll hold the Windows BOOTMGR and the BCD. Is this simply a matter of disconnecting Disk 1 then booting and maybe doing a startup repair to let Windows automatically create a new MBR or should I use some software like EasyBCD or are the command line utilities like bcdboot and bcdedit enough? If the latter, what would be the exact commands I would need to get the job done? So now I need to safely get the MBR and bootmgr from Disk 1 to Disk 0. Now I am comfortable with my new OS setup and want to format Disk 1 to a single partition so that I can copy the data from Disk 2 to Disk 1 to use the newer faster drive as my backup and just keep Disk 2 as a redundant backup stored offsite. Here is an image of my Disk Manager:ĭisk 2 (D:) is an old slow dying backup HDD.ĭisk 1 (G:) is a much newer faster (7200rpm) HDD which used to have the OS on it.ĭisk 0 (C:) is a very new SSD which now has the OS on it.ĭisk 1 has all of the boot info on it because I wanted to be able to still get into the old OS while I was getting the new OS set up and tweaked. I have several hard drives in my desktop but only 1 has the OS (Win 10).
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