Clean Convert GPT Install Failure | Generated by AI
Question: Windows 11 installation failed after doing clean/convert gpt and letting Setup auto-create partitions — need the actual error to diagnose.
Answer: “Installation failed” alone isn’t enough to pinpoint the cause — Setup gives a specific error code or message when it fails (usually during the “copying files” or first reboot stage). Common ones on Lenovo Xiaoxin + fresh clean/convert:
- “Windows cannot be installed to this disk. The selected disk has an MBR partition table…“ → you converted to GPT but BIOS is still set to Legacy/CSM boot instead of UEFI. Fix: enter BIOS (
F2), set Boot Mode = UEFI (not Legacy), disable CSM/Secure Boot compatibility mode if needed. - “We couldn’t create a new partition or locate an existing one… 0x80300001” → USB boot media not detected as UEFI, or missing storage driver. Re-flash your Windows 11 USB with Rufus in GPT + UEFI mode.
- Error during file copy, then reboots and fails again → corrupt USB media (bad flash) or bad ISO. Re-download ISO, re-flash USB.
- Stuck/fails right after first automatic reboot → BIOS boot order still pointing to USB instead of the new Windows partition on the internal disk — go into BIOS and set the NVMe/SSD as first boot device (or remove USB and it should proceed).
Can you tell me:
- The exact error message/code (photo helps if you have one)
- At what point it failed — during file copy, or after a reboot
That’ll tell me exactly which of the above it is.
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