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.
In this situation, you receive the following error message:
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.
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.