Windows 10 and GParted

[glennd]

I'm trying to read a clean Windows 10 installation with GParted and having no joy. Anyone succeeded in doing this? Brand new fresh clean unadulterated windows 10. as soon as it finished installing i booted into pmagic and opened gparted. The Error is: "Warning: /dev/sda contains GPT signatures, indicating that it has a GPT table.
However, it does not have a valid fake msdos partition table, as it should.
Perhaps it was corrupted -- possibly by a program that doesn't understand GPT
partition tables. Or perhaps you deleted the GPT table, and are now using an
msdos partition table. Is this a GPT partition table?"

It's a long story but where I'm up to is copying a partition image containing win 10 to the disk to replace the existing win 10 but gparted doesn't even see the existing partitions.

 

[glennd]

I'm trying to read a clean Windows 10 installation with GParted and having no joy. Anyone succeeded in doing this? Brand new fresh clean unadulterated windows 10. as soon as it finished installing i booted into pmagic and opened gparted. The Error is: "Warning: /dev/sda contains GPT signatures, indicating that it has a GPT table.
However, it does not have a valid fake msdos partition table, as it should.
Perhaps it was corrupted -- possibly by a program that doesn't understand GPT
partition tables. Or perhaps you deleted the GPT table, and are now using an
msdos partition table. Is this a GPT partition table?"

It's a long story but where I'm up to is copying a partition image containing win 10 to the disk to replace the existing win 10 but gparted doesn't even see the existing partitions.

UEFI - gets 'em every time

 

[BrianofNazareth]

I've seen the same error when accessing a drive (with Windows installed) that had previously been used for OS X. I used 'gdisk' to resolve the issue. Note this was not Windows 10 that I was working on.

Boot Partition Magic, use command "sudo gdisk /dev/sda1" <-you will need to select the correct disk/partition
"X" <- access expert functions
"Z" <- Zap GPT file structures and exit
"yes" to confirm

See:
http://www.rodsbooks.com/gdisk/walkthrough.html for more information. Your mileage may vary.