Symptoms
Consider the following scenario:
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You create a virtual machine that is configured to use the minimum RAM requirement (512 megabytes [MB]).
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You start the virtual machine from an ISO image file.
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You try to set up Windows Server 2012 R2 on the virtual machine.
In this scenario, the setup fails, and you receive the following error message:
Windows installation encountered an unexpected error. Verify that the installation sources are accessible, and restart the installation.
Error code: 0xE0000100"
Cause
This issue occurs because of insufficient memory during setup.
Workaround
To work around this issue, use one of the following methods:
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Create a page file. To do this, follow these steps:
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When the virtual machine starts, press Shift + F10 to open the Command Prompt window.
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RunĀ Diskpart.exe to create and format the partition (for example, C:) on which you want to install Windows Server 2012 R2.
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Run the following command to create a page file that has default size of 64 MB:
wpeutil createpagefile /path=C:\pf.sys
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Exit the Command Prompt window, and then continue the setup.
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Increase the allocated memory of the virtual machine before setup.
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Create and set up another virtual machine that is configured to use more memory, and then attach the virtual hard disk.