Edit efi partition windows 10#

Edit efi partition windows 10#

Using minitool PW (or Windows Disk Management)ДЎ0- Delete the old EFI partition, (the one at right of Windows one ), it will become unallocated space.ДЎ1- Extend Windows partition using the unallocated space made from the old EFI partition.ДЎ2- Reboot, normally Windows will load properly, and by launching diskmgmt.msc via 'run', your EFI partition should be properly located before Windows (at its left).ДЎ3- Don't forget to re-enable Secureboot in BIOS settings.Дo a new backup, because backups always save your life )Д®dited by Umbra, 23 December 2017 - 01:29 AM.I had problem with upgrading from Windows 8 to Windows 10 on my Toshiba Z20 convertable, because i had installed some Linux and MacOS on it and Microsoft is sniffing around and error code is generic i now upgraded internal storage to something bigger (i copied only Windows 8 partition for try), i just need to create Windows 8 EFI boot partition or somehow change to start Windows EFi instead of Grub which is targeted on now present partition. now at this point you should have 2 EFI partitions (one before and one after the Windows partition)Д©- Exit Gparted, reboot, you shouldn't have any problems but we aren't finish.Дo a backup of all the partitions.

(please disable Secureboot in BIOS settings, if not you won't boot from it)ДҐ- Gparted will ask 2-3 questions, let them at default.Д¦- Once the GUI appears, select the newly created partition (should be at the left of the Windows partition with the size you chose earlier).Д§- Right click > select Manage Flags > tick BOOT and ESP.ДЁ- Validate the operations, Gparted will execute them and refresh the GUI. validate the operations.Д¤- With Gparted (as live USB), booted from it. (300mb in my case) and place the unallocated space before the windows partition (the 'before' is the most important point).Дў- Create a new FAT32 partition from the unallocated spaceДЈ- copy the EFI partiton to this new partition. Indeed Gparted cant fully move the EFI, so i used a workaround to make it possible, and it needs Gparted so i will put the procedure in case someone needs it:ДЎ- Shrink the Windows partition by the same size as the existent EFI partition is. Personally, if the computer boots fine I would leave the partitions alone, especially if there is important data on the drive. Then delete the EFI partition after the Windows partition and expand the Windows partition into the space left behind by the deleted EFI partition.ДЄnother way would be to delete the EFI partition, move the Windows partition and MSR partition, then rebuild the EFI partition using diskpart but that is not an easy task. You can copy partitions between disks but I am not sure if you can copy partitions on the same disk especially EFI partitions. You would need to shrink the left side of the Windows partition, move the MSR partition to the right, and then somehow copy the EFI partition to the front of the Windows partition, if that is even possible. I am not sure how you would be able to move the EFI partition to the front of the Windows partition using Gparted. Windows 10 does have a RE (Recovery Environment) partition that is used for accessing the Advanced Boot Options.

It cannot be resized but it should be movable.