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I have Windows 10 installed in Legacy mode (upgraded from Win7) and I want to add Ubuntu Studio 20.04 (dual boot). Is it safe just to start installation disk and allow Ub.Studio to install itself along Win10 and create partitions from within the installation programme? This is what I always did with Win 7 and I wonder if it won't destroy my Win10 this time. Most issues reported concern conflicts between Legacy and UEFI, but I have no UEFI Win10 installation ... so perhaps it could work again? I am afraid to risk losing Windows though ...

To Sz
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You can convert Windows 10 to UEFI through command prompt. I have tried this and it worked perfectly for me. After converting Windows 10 to UEFI you won't have conflict issues between UEFI and BIOS.

How to convert Windows to UEFI

This will only work if you have windows 10 version 1703 or higher.

  1. Enter windows recovery environment by holding shift and selecting restart.
  2. In Troubleshoot-->Advanced open command prompt with your admin account.
  3. type mbr2gpt /validate and press enter. validate
  4. type mbr2gpt /convert and press enter. convert
  5. Exit the cmd and select turn off the pc.
  6. Power on and go to firmware setting by pressing F2.
  7. Change the boot mode to UEFI
  8. Save and exit (F10)
VidathD
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