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Resolving the error: The virtual machine is unable to reserve memory (1014955)

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  • An error indicates that the virtual machine is unable to reserve memory on the host.

  • You see the following error:

    The virtual machine is unable to reserve memory. If selecting Retry does not work, try powering off or suspending any other virtual machines before clicking Retry.

high-memory  host-memory  insufficient-memory-cpu-disk  memory-overcommited  sufficient-host-memory  increase-ram


Note: If you are seeing this error after installing Service Pack 1 for Windows 7 or Windows 2008 R2, see After installing Windows 7 SP1, VMware Workstation reports the error: Not enough physical memory is available to power this virtual machine (1036185).

This error is generated when the VMware application is unable to reserve the memory (RAM) necessary to successfully power on or run a virtual machine. Typically, this occurs when the memory allocation settings for a virtual machine do not match the resources available on the host.

To resolve this issue, decrease the memory assigned to each virtual machine, increase the amount of physical memory installed in the host, or both.

For more information about making changes to:

See Also

Update History

03/22/2011 - Added link to explain issues with SP 1 for Win 7 / Win 2008 R2. 06/04/2011 - Clarified resolution sentence.

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  • 186 Ratings