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6 Set your disk space configuration, depending on the constraints of the file system.
Option Description
Pre-allocate disk space Can give better performance for your virtual machine. If you allocate all the disk
now, you cannot use the VMware Tools shrink disk feature later. Allocating all disk
space now is a time-consuming operation that cannot be canceled. Also, the
allocation process requires as much physical disk space as you specify for the
virtual disk.
Split disk into multiple files Default. Some file systems, such as FAT and UFS, cannot support very large files.
Use this option if your virtual machine will be used in a hard drive with a file system
that does not support very large files. This option splits your virtual disk into
multiple files. Also, use this option if you might place the virtual machine on an
external FAT drive or if you might move the virtual machine to an external drive.
7 Apply the changes and choose automatic or manual partition resize for Windows guests.
Option Description
Click Apply. For Windows guests, the partition is automatically resized when the hard disk is
resized.
Click Apply while pressing the Option
key.
The hard disk is resized but the partition is not. To manually resize the partition of
the guest, see Resize a Windows Partition with the Disk Management Tool.
Results
Fusion displays a progress dialog box as it rebuilds the virtual disk.
Resize a Windows Partition with the Disk Management Tool
When you enlarge your virtual hard disk, you must also enlarge your guest operating system's partition to
take advantage of the additional space.
Fusion resizes the guest operating system's partition when you resize the virtual hard disk. If you held
down the Option key when you clicked Apply to resize the disk, you can manually resize the Windows
partition. For Windows Vista and Windows 7 or later, you can use the operating system's Disk
Management tool to resize a partition.
Prerequisites
Verify that your virtual hard disk is big enough to accept the increase in partition size. See Resize a Hard
Disk.
Procedure
1 Right-click Computer and select Manage.
2 Double-click Storage.
3 Double-click Disk Management.
4 In the list, right-click the partition to expand and select Extend Volume.
Using VMware Fusion
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