Windows & BSOD · high

How to fixHYPER-V-MEM-OVERCOMMIT

Hyper-V virtual machine memory overcommit crash

What this error means

This high-severity issue affects the Windows operating system. A Hyper-V VM crashes or Windows host becomes unresponsive due to memory overcommitment. Use the steps below to track down and fix the cause.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Enable Dynamic Memory for the VM in Hyper-V Manager

Enable Dynamic Memory for the VM in Hyper-V Manager.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Reduce the VM startup RAM

Reduce the VM startup RAM.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Close memory-intensive host applications

Close memory-intensive host applications.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • Total VM RAM allocation exceeds host physical RAM
  • Dynamic memory not configured
  • Host running other memory-heavy processes simultaneously