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Error encountered with MBR2GPT, system not accessible.

Error encountered with MBR2GPT, system not accessible.

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Marok203
Member
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126
09-01-2025, 03:22 AM
#1
Hey there, I see you're facing some challenges with your Legacy Windows setup. You tried using the MBR2GPT.exe tool and followed a guide, but when you ran the validation command it didn’t work as expected. You mentioned issues with the ReAgent.xml update and a problem booting in BIOS—especially when switching between Legacy/CSM and UEFI modes. It sounds like the system is still trying to boot in a mixed mode or there’s a mismatch in firmware settings. Have you checked if the BIOS is set to UEFI and if the SSD is properly recognized? Also, ensure that the Windows installation is correctly installed and not corrupted. If you need further help, let me know what steps you’ve taken so far.
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M
Marok203
09-01-2025, 03:22 AM #1

Hey there, I see you're facing some challenges with your Legacy Windows setup. You tried using the MBR2GPT.exe tool and followed a guide, but when you ran the validation command it didn’t work as expected. You mentioned issues with the ReAgent.xml update and a problem booting in BIOS—especially when switching between Legacy/CSM and UEFI modes. It sounds like the system is still trying to boot in a mixed mode or there’s a mismatch in firmware settings. Have you checked if the BIOS is set to UEFI and if the SSD is properly recognized? Also, ensure that the Windows installation is correctly installed and not corrupted. If you need further help, let me know what steps you’ve taken so far.

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E
eastland97
Senior Member
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644
09-01-2025, 04:03 AM
#2
Ensure "Windows boot loader" appears in BIOS under UEFI. Turn off all other drives and attempt to boot.
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E
eastland97
09-01-2025, 04:03 AM #2

Ensure "Windows boot loader" appears in BIOS under UEFI. Turn off all other drives and attempt to boot.

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