Setup was unable to create a new system partition or locate an existing system partition. See the Setup log files for more information


  • if I format the disk with command:

    format fs=ntfs unit=64K  label=”My Local Disk” quick

    I always get the error and could not continue to install the OS.

    If I run: format fs=ntfs label=”My Local Disk” quick

    everything works!

    Monday, May 06, 2013 4:35 PM


All replies

  • Hi,

    Have you created the partition with right allign=<Offset_in_KB> command?


    explanation from:

    Using Diskpart.exe to Perform Partition Alignment, Assign Drive Letters, and Assign File Allocation Unit Size:

    The good news is that partition alignment is simple to perform; the bad news is that partition alignment must be done at partition creation time, prior to partitions being formatted. This is great if you have a new SAN, but it might be painful to convert large amounts of existing data on misaligned partitions.

    Caution: Realigning partitions using any tool is a destructive operation, because it wipes out existing data.

    Here is a template for using diskpart.exe to perform partition alignment, assign a drive letter, and format a partition.

    Diskpart list disk select disk <DiskNumber> create partition primary align=<Offset_in_KB> assign letter=<DriveLetter> format fs=ntfs unit=64K label="<label>" nowait

    Here is an example in which the F: drive is created on disk 3, aligned with an offset of 1,024 KB, and formatted with a file allocation unit (cluster) size of 64 KB.

    C:\>diskpart Microsoft DiskPart version 6.0.6001 Copyright (C) 1999-2007 Microsoft Corporation. On computer: ASPIRINGGEEK DISKPART> list disk   Disk ###  Status      Size     Free     Dyn  GPT   --------  ----------  -------  -------  ---  ---   Disk 0    Online       186 GB      0 B   Disk 1    Online       100 GB      0 B   Disk 2    Online       120 GB      0 B   Disk 3    Online       150 GB   150 GB DISKPART> select disk 3 Disk 3 is now the selected disk. DISKPART> create partition primary align=1024 DiskPart succeeded in creating the specified partition. DISKPART> assign letter=F DiskPart successfully assigned the drive letter or mount point. DISKPART> format fs=ntfs unit=64K label="MyFastDisk" nowait

    Note that nowait initiates asynchronous formatting, so that the formatting of multiple partitions can begin one after another, allowing the operations to proceed in parallel. The format option is not available in Windows Server 2003.

    Diskpart can be executed directly from the command line or scripted. The /s switch specifies an input script file.

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    Monday, May 06, 2013 6:29 PM
  • found the answer: Windows basically does not support non-default file allocation size for boot/system partition.

    Created a small partition with default allocation size 4k for boot/system; install OS on other partitions with any allocation size eg 64k.

    • Marked as answer by Guangming Monday, May 06, 2013 6:30 PM
    Monday, May 06, 2013 6:30 PM