W11Ent_x64 HDD: GTP Protected Partition to GTP Base Partition without loosing data?

PC Admin 5 Reputation points
2024-05-14T09:46:21.22+00:00

Hail all:
System: (Note: No Watercooling used.)
Micro-Star International Co. Ltd. MAG B460 TOMAHAWK (MS-7C81) (U3E1) (Motherboard)

Intel Core i5 10600K @ 4.10GHz 28 °C (CPU)

64,0GB Dual-Channel DDR4 @ 1196MHz (RAM)

Micro-Star International Co. Ltd. NVIDIA GeForce RTX 3070 4095MB 42 °C (GPU)

KINGSTON SNVS500GB (SATA-2 (SSD)) ( NVMe Boot/System Device)

SPCC Solid State Disk (SATA (SSD)) (Virtual Memory-/Swapfile Drive)

3726GB Hitachi HGST HUS726040ALE610 (SATA ) 20° - 30°C (x 6, 34TB total) (Data Drives)

Windows 11 Enterprise x64 23H2

Nedis Coatyss "Nedis GKBD400bkus" Metal Mechanical Keyboard

PERIMICE-517 - Wired Ergonomic Vertical Trackball Mouse – Perixx UK

Issue:
Through a HDD/SSD Hub, I wanted to move data from older disk to current disk.
This drive was a W10Ult_X64, never had issues.
Now, the GTP Base Partition turned somehow into a GTP Protected Partition, and shows on top mere HALF the total hdd size (3TB became 16'384MB???) which I totally fail to comprehend.
How can I swap the partition back to GTP Base Partition without loosing data?
I cannot reinstall W10Ult_x64 to access the drive ... .

Please assist?

Thank you.

Windows 11
Windows 11
A Microsoft operating system designed for productivity, creativity, and ease of use.
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  1. Wesley Li 10,490 Reputation points
    2024-05-23T10:12:09.7966667+00:00

    Hello

    It seems there is something wrong with the disk partition table.

    If the data is virtal, we may consider to ask for help from the professional data recovery center.

    If it is safe to remove the data, we could try the steps listed in the following link.

    How To Fix GPT Protective Partition Issue Without Data Loss? (diskgenius.com)


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