Repair Linux Bootloader3/24/2021
Using bootrec fixmbr will lead to error that the system cannot find the file specified.Ubuntu is not my thing, so now I want to remove it along with GRUB.
From what I have learned, with UEFI, GRUB does not overwrite the windows bootloader in the EFI partition and is stored elsewhere. How would I remove GRUB and make my PC use the Windows bootloader instead It should be noted that I created a separate boot partition when installing Ubuntu. I have just done this operation without one; all you need to do is log out so youre on the log in screen, then you start holding down Shift, and press the power icon in the bottom right, then click Restart, now let go of Shift. You just have to go to Troubleshoot Advanced options Command Line and run bootsect nt60 c: mbr. Repair Linux Bootloader Update May BeThe update may be unreliable since the volume could not be locked during the update: Access is denied. Repair Linux Bootloader Code Is OnlyPhysicalDrive0 Bootcode is only updated on MBR partitioned disks. PhysicalDrive0. 1. Reboot and press F12 to open your bios screen (It could be F8 or F2 depending on your model). You should see Ubuntu Grub as the first bootloader and Windows as the second one. ![]() It will probably be a large partition without a drive letter. Repair Linux Bootloader How To Go ToThis answer led me to reset my PC unnecessarily once because I didnt know how to go to command prompt. You have to remove ubuntu folder from efi partition first or UEFI will re-add it. And if only Windows you have to mount from inside Windows the efi partition as it is not normally mounted. Some UEFI systems may let you do the UEFI edit from UEFI menu. I could delete the ubuntu partition in Windows using informaition from here: superuser.comquestions662823. Look for a blue icon with the label Windows PowerShell, right click on the that and select Run as Administrator within the context menu. We can access the mounted volume by changing to the drive by the cd command and the drive letter S: as parameter. Change to it by using the cd command and list the entries via the dir command. It takes three applications: Unetbootin, FreeDOS and Testdisk for DOS. Choose Freedos when prompted for a distribution to install on it. Choose: FreeDOS Safe Mode (dont load any drivers) and Press Enter. You should see the grub menu, even though you can boot to Windows from here, this is not what we want yet. Especially make sure the small grub partition is removed. Reboot. It will act differently, there is no grub bootloader detected to reinstall and should run faster than before. Using bootsect nt60 C: mbr will show that it worked while it really doesnt.
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