Article ID: 972502 - View products that this article applies to.
When you try to upgrade from Windows Vista to Windows 7, from Windows Server 2008 to Windows Server 2008 R2, from Windows Server 2003 to Windows Server 2008 R2, or from Windows Server 2008 R2 to Windows Server 2012, the upgrade fails.
In this situation, you receive the following error message:
This problem does not occur during the new client setup experience for Windows 8.
The following issues are preventing Windows from upgrading. Cancel the upgrade, complete each task, and then restart the upgrade to continue.
There is not enough free space on partition (drive:). A total of space_size megabytes (MB) of free disk space is required. Try Disk Cleanup, or moving files to an external location such as a CD, DVD, or external hard drive, and then restart the installation.
This problem occurs when the size of the virtual memory paging file falls below the recommended limit. Windows upgrade requires that the page file be the recommended size and that sufficient space be available on the drive to accommodate a default sized page file. By default, Windows stores the paging file on the system volume. Therefore, there is insufficient free space on the system volume when you try to upgrade to Windows 7, Windows Server 2008 R2, or Windows 2012.
To resolve this problem, use one of the following options.
Option 1: Free up space on the system volumeUse Disk Cleanup, or try to move files to an external location such as a CD, DVD, or external hard disk drive. Then, restart the installation. Make sure that required free space is available on the system drive.
To free up space on your hard disk, Disk Cleanup finds and then removes temporary files on your computer that you decide you no longer need. If you have more than one drive or partition on your computer, you are prompted to select the drive that you want Disk Cleanup to clean.
To start Disk Cleanup, click Start
, click All Programs, click Accessories, click System Tools, and then click Disk Cleanup.
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Option 2: Move the paging file to another volume
Article ID: 972502 - Last Review: August 23, 2013 - Revision: 1.0