As far as I know. I assign the standard Linux GUIDs on non-Windows volumes to be sure, as appropriate even though the regular "Basic Volume" GUID is often foun

As far as I know. I assign the standard Linux GUIDs on non-Windows volumes to be sure, as appropriate even though the regular "Basic Volume" GUID is often found since it works "for all". The standard Linux Partition_type_GUIDs as shown in Wikipedia (please refer to it) after expanding ("show") the condensed table: 4F68BCE3-E8CD-4DB1-96E7-FBCAF984B709 for the OS root 0FC63DAF-8483-4772-8E79-3D69D8477DE4 for data 8484680C-9521-48C6-9C11-B0720656F69E for usr 0657FD6D-A4AB-43C4-84E5-0933C84B4F4F for swap These can be SET ID from Windows, plus you can set GPT Attributes to hidden and/or readonly temporarily because it is getting more difficult to trust Windows so that's why I'm experimenting so much. Also you can safely change the ESP volume GUID from standard to basic, and Windows will most likely still boot normally on many PCs, you can then assign a volume letter to the ESP and after another reboot have full admin access to the ESP and its black pearl, the EFI folder within, from the GUI. Standard ESP C12A7328-F81F-11D2-BA4B-00A0C93EC93B Basic Data EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 Check my other extensive comment coming soon. :)