Search for cmd in the Start Menu, right-click, and select Run as administrator.Once you’ve made sure everything is in order, it’s time to use the MBR2GPT tool. If you can’t find the setting, use the manual. The process differs across manufacturers, so you may need to look around a little. Take a quick tour of the firmware and look for the setting that allows you to switch between BIOS and UEFI before starting the conversion. After conversion, you can’t boot into Windows until you change the motherboard’s firmware settings from Legacy BIOS to UEFI.
Since Windows won’t convert an encrypted disk, you’ll need to disable BitLocker before you begin the conversion. If you see more than three partitions, you’ll need to merge the partitions or delete them. You can view the partitions by pressing Win + R and running diskmgmt.msc. Legacy BIOS to UEFI Conversion PrerequisitesĪssuming you’ve verified that you’re using the Legacy BIOS, there are a few other things you need to check, and in some cases, change.