> This can also be used to resize the existing disk to a larger capacity without any data loss. However you will need to [manually extend the disk partition](https://learn.microsoft.com/en-us/windows-server/storage/disk-management/extend-a-basic-volume?tabs=disk-management) since the added disk space will appear as unallocated.
> This can also be used to resize the existing disk to a larger capacity without any data loss. However you will need to [manually extend the disk partition](https://learn.microsoft.com/en-us/windows-server/storage/disk-management/extend-a-basic-volume?tabs=disk-management) afterwards, since the added disk space will appear as unallocated.
If the device is a USB disk drive, please wait until after the installation is fully completed before connecting it. Otherwise the installation may fail, as the order of the disks can get rearranged.
> [!WARNING]
> Adding a USB mass storage device before Windows Setup has finished may cause it to fail. Or worse: the drive can get formatted as the system disk, and all your data will be lost! So always keep them disconnected when launching the container for the first time.
