If you check the thread I linked to, the only time you should be seeing "GPT Protective Partition" is if your trying to use XP to read the disk. Otherwise Windows 7,8,8.1, & 10 should have no ...

The selected GPT formatted disk contains a partition which is not of type PARTITION_BASIC_DATA_GUID This is reported mostly when the user is trying to extend a specific disk-partition.

The only online references I've found to "GPT protective partition" have been in relation to trying to read GPT-formatted partitions on Windows XP, which doesn't support GPT.

The newer (GPT) standard solves some limitations of the older (MBR) standard. Here's how to tell which standard your drive uses.

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