Secure Boot Enabling with Existing Windows 10 Installation
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If Windows was installed in UEFI mode (''if your OS disk uses GPT rather than MBR then ii is already in UEFI mode''), then you can just enable Secure Boot in the UEFI/BIOS.
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If Windows was installed in UEFI mode (''if your OS disk uses GPT rather than MBR then it is already in UEFI mode''), then you can just enable Secure Boot in the UEFI/BIOS.
''Now Master Boot Record (MBR) disks use the standard BIOS partition table. GUID Partition Table (GPT) disks use Unified Extensible Firmware Interface (UEFI'').
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But in your case your system drive was probably set up with MBR. You will need to switch it to GPT. Microsoft has a conversion utility called MBR2GPT that converts the disk to GPT and creates the necessary additional partitions. Try the setting now in the UEFI/BIOS. Should work.
+
But in your case your system drive was probably set up with MBR.
+
+
You will need to switch it to GPT. Microsoft has a conversion utility called MBR2GPT that converts the disk to GPT and creates the necessary additional partitions. You can run it from a Windows PE flash drive. The link below explains in more detail. Once done the Secure Boot on and CSM off settings in the UEFI/BIOS should now work.
Secure Boot Enabling with Existing Windows 10 Installation
If Windows was installed in UEFI mode (''if your OS disk uses GPT rather than MBR then ii is already in UEFI mode''), then you can just enable Secure Boot in the UEFI/BIOS.
''Now Master Boot Record (MBR) disks use the standard BIOS partition table. GUID Partition Table (GPT) disks use Unified Extensible Firmware Interface (UEFI'').
But in your case your system drive was probably set up with MBR. You will need to switch it to GPT. Microsoft has a conversion utility called MBR2GPT that converts the disk to GPT and creates the necessary additional partitions. Try the setting now in the UEFI/BIOS. Should work.
Secure Boot Enabling with Existing Windows 10 Installation
If Windows was installed in UEFI mode (''if your OS disk uses GPT rather than MBR then ii is already in UEFI mode''), then you can just enable Secure Boot in the UEFI/BIOS.
''Now Master Boot Record (MBR) disks use the standard BIOS partition table. GUID Partition Table (GPT) disks use Unified Extensible Firmware Interface (UEFI'').
But in your case your system drive was probably set up with MBR. You will need to switch it to GPT. Microsoft has a conversion utility called MBR2GPT that converts the disk to GPT and creates the necessary additional partitions. Try the setting now in the UEFI/BIOS. Should work.