问题：

[多选] You work as an administrator at ABC.com.The ABC.com network consists of a single domain named ABC.com.All servers on the ABC.com network have Windows Server 2012 R2 installed. You have received instructions to convert a basic disk to a GPT disk.Which of the following is TRUE with regards to GPT disks？（）

A . To convert a basic disk to a GPT disk， the disk must not contain any partitions or volumes
B . You can convert a basic disk to a GPT disk， regardless of partitions or volumes
C . GPT is required for disks larger than 2 TB
D . GPT is required for disks smaller than 2 TB
E . The GPT partition style can be used on removable media
F . GPT disks make use of the standard BIOS partition table