If you can't get the PowerShell module to work, or you are on a system where you can't install Hyper-V, you can use the built-in diskpart tool to achieve the same result. Open Command Prompt as . Type diskpart .
Historically, the optimize-vhd cmdlet lived in the . However, in modern versions of PowerShell (Core/6+), the module names have changed. If you are running the newer PowerShell Core but looking for the old command, it won't work. optimize-vhd not found
optimize-vhd -Path "D:\VMs\disk.vhdx" -Mode Full If you can't get the PowerShell module to