To change from a Legacy Boot mode to UEFI Boot mode once Windows 10 has already been installed and data saved is there anything else I need to do other than converting the drives from MBR to GPT with Minitool Partition Wizard?
It's best to convert before doing a clean install of Windows, but you can use the method below.
Convert Windows 10 from Legacy BIOS to UEFI without Data Loss
Please see these tutorials: (some additional for Windows 11)
Convert MBR Disk to GPT Disk in Windows 10
Convert Windows 10 from Legacy BIOS to UEFI without Data Loss
Check if Windows 10 is using UEFI or Legacy BIOS
Check if Disk is MBR or GPT in Windows
Check BIOS or UEFI Firmware Version in Windows 10
Enable or Disable Secure Boot on Windows 10 PC
OK
This is not going to be easy for me as this is for my daughter who lives in an other town. I would have to do most of this remotely with TeamViewer. System Information and Disk Management to see if the system BIOS is in UEFI mode and the OS disk is GPT I can do remotely. I hope and wish that the MBR to GPT, Command Prompt MBRTtoGPT command can also be done remotely leaving going into setup and making sure that UEFI boot is enabled and Secure Boot is enabled. Is having Fast Boot enabled in the BIOS a good or bad thing.
All this is to get her pc ready for next year to upgrade to Windows 11!
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