Symptoms

Trying to start Parallels Desktop virtual machine based on Boot Camp partition you receive the following error message:

‘More than one Windows partitions are found. This is not a standard Boot Camp Configuration'

Resolution

1. In the Finder, open Applications > Utilities and double-click the Terminal icon

2. In the Terminal, type the command

diskutil list

and press Enter

3. In the output, locate the required Boot Camp Windows partition (for example, Microsoft Basic Data NO NAME 31.4 GB disk0s3) and note the partition’s number, as well as the number of the drive

4. In the Finder, navigate to Documents > Parallels and locate the .pvs file of the virtual machine. Open this file using TextEdit and locate the following line:

Disk 0:0 image = Boot Camp

5. Change the line in the following way:

Disk 0:0 image = Boot Camp;diskXsY

Where:

X stands for number of physical disk

Y refers to the number of Boot Camp Windows partition.

This parameters are displayed when running diskutil list command.

6. Save the changes.

7. Close the TextEdit and double-click the .pvs file to start Windows.

For Example:

The output of command diskutil list looks as follows:

dev/disk0

#: type name size identifier

0: GUID_partition_scheme *465.8 GB disk0

1: EFI 200.0 MB disk0s1

2: Apple_HFS Mac HD 434.0 GB disk0s2

3: Microsoft Basic Data NO NAME 31.4 GB disk0s3

/dev/disk1

#: type name size identifier

0: CD_partition_scheme *352.3 MB disk1

1: CD_ROM_Mode_1 Mac Drivers 306.8 MB disk1s0

/dev/disk2

#: type name size identifier

0: FDisk_partition_scheme *149.1 GB disk2

1: DOS_FAT_32 CHAS 149.0 GB disk2s1

/dev/disk3

#: type name size identifier

0: Apple_partition_scheme *90.3 MB disk3

1: Apple_partition_map 31.5 KB disk3s1

2: Apple_HFS Parallels Desktop 90.2 MB disk3s2

The line in the .pvs file should look like:

Disk 0:0 image = Boot Camp;disk0s3