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So at this point in the Ubuntu installation, it gives you an option to "Erase disk and install Ubuntu"

But it says below it will delete files in all operating systems:

Ubuntu Installation

I have two disks, one with Windows and one with Fedora. I want to switch from Fedora to Ubuntu, but I do NOT want to get rid of my Windows, I want that disk completely unaffected.

Will this option in the installer erase my Windows as well, even if I don't select the Windows disk in the next window to install Ubuntu on?

Or will this option only delete the operating from the disk I choose in the next window?

Ran Shorowitz
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1 Answers1

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You have a few options. You can physically disconnect the disk with Windows before installing Ubuntu so that you can use this "Erase disk and install Ubuntu" option, then reconnect the disk after installation. You will need to update GRUB so that Windows is an option in the GRUB bootloader.

But the better option would be to format the disk with Fedora before you start the Ubuntu installation. You can do this in the Disks applications from the live session (Try Ubuntu).

If you have unpartitioned free space, you will get a guided installation option to "Install Ubuntu alongside Windows", which avoids the problem of having to manually partition and also will set up GRUB with both operating systems.

If Windows is installed as UEFI, make sure you use GPT partitioning and boot the Ubuntu installation media as UEFI.

Of course you should be aware that people make mistakes so you should always have sufficient backups, especially when making changes to partitions or installing/uninstalling operating systems.

Nmath
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