Hyper-V VM can't start because of low memory

Chinmoy Rajorshi Dip 1 Reputation point
2020-10-15T09:38:21.383+00:00

When I try to start virtual machine, it says enough memory is not available. I have 8 GB of RAM and A virtual machine fails to start even sometimes with 1 GB of ram or less. Most of them are occupied. I tried disabling startup apps but the result remains the same. Even After a reboot I fail to run a VM with 4 GB of memory. But in the earlier days with Hyper-V on this device VMs with 4 GB of RAM could start easily. VMware workstation or VirtualBox VMs can start even if I have less RAM, But Hyper-V requires more than I configured for the VM.

System Center Virtual Machine Manager
Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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  1. Leon Laude 85,716 Reputation points
    2020-10-15T09:45:24.857+00:00

    Hi @Chinmoy Rajorshi Dip ,

    How much RAM of your total 8GB is currently in use?

    Remember that the host operating system reserves a certain amount of memory.

    Are the Hyper-V virtual machines configured with static, or dynamic memory? If dynamic memory, how much minimum RAM is configured?

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    Best regards,
    Leon

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  2. Xiaowei He 9,876 Reputation points
    2020-10-16T02:43:32.517+00:00

    Hi，

    If the Hyper V host has enough free memory for the VM to start, while we still get the error, please check if there's any unreleased vmconnection.exe in the task manager that uses the memory, if yes, please end the unusable VMconnection.exe task

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    Thanks for your time!
    Best Regards,
    Anne

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