Applies to: Windows Server 2019, Windows Server 2022, and Windows Server 2025.
Dynamic Memory adjusts virtual-machine RAM within safe administrator-defined limits.
Prerequisites
- Administrative access and an approved change window.
- A verified backup and documented rollback plan.
- A pilot environment or low-risk target for validation.
Step-by-step procedure
- Confirm the guest operating system supports Dynamic Memory.
- Record current startup RAM and workload peaks.
- Set startup, minimum, and maximum values while the VM is off when required.
- Monitor memory pressure after startup.
Commands
Set-VMMemory -VMName "APP01" -DynamicMemoryEnabled $true -StartupBytes 4GB -MinimumBytes 2GB -MaximumBytes 12GB
Get-VMMemory -VMName "APP01"Verification
The guest remains responsive and Hyper-V reports acceptable assigned memory and pressure.
Rollback
Disable Dynamic Memory and restore the recorded fixed startup RAM during a maintenance window.
Security notes
- Use least privilege and record the change.
- Review relevant event logs after implementation.
- Test before production rollout.
Related resources
Canadian Windows VPS and RDS hosting: networkmanager.info. Refer to Microsoft Windows Server documentation.
