Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsWhen PowerShell Direct fails, match the error to its prerequisite: check the host and guest versions, confirm the VM is local and fully running, then verify host permissions, guest credentials, and the guest service. PowerShell Direct does not require guest networking or remote-management settings, but it does require a supported Windows host and guest and a valid guest account. Microsoft’s PowerShell Direct guide documents the requirements and error-specific checks.
Check the prerequisites before changing settings
- Supported systems: Microsoft documents Windows 10 or later, or Windows Server 2016 or later, for both the Hyper-V host and the Windows guest. For older VMs, use VMConnect or connect over a network instead.
- Local, running VM: The VM must be on the local Hyper-V host, powered on, and have at least one configured user profile. A VM still booting, unable to boot, or waiting for input may end the remote session.
- Host permissions: The person running the command must be a Hyper-V administrator on the host.
- Guest authentication: You need valid credentials for an account in the guest. Being an administrator on the host does not grant administrator access inside the VM.
- PowerShell version: Microsoft’s guide requires PowerShell major version 5 or later. Persistent PowerShell Direct sessions are documented for Windows builds 14280 and later.
Check the host’s Windows and PowerShell versions with:
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[System.Environment]::OSVersion.Version
$PSVersionTable.PSVersionUse Get-VM to check whether the VM exists on the local host and inspect its state. PowerShell Direct works regardless of guest network configuration or remote-management settings, so changing those settings is not a prerequisite.
Match the error to its likely cause
“A remote session might have ended”
Check that the VM exists and is running, the guest Windows version is supported, and startup has finished. If the guest is waiting for input during boot, resolve that through VMConnect. The wording is not conclusive on its own: Microsoft also notes it as a general error on older host builds 10240–12400.
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-VMName or -VMId is not a recognized parameter
Check the host’s Windows build and PowerShell version. Confirm that the command is running in an environment with PowerShell major version 5 or later and that the host supports PowerShell Direct.
New-PSSession fails to create a remote session
First apply the VM-state, guest-version, and boot checks above. On older builds, Microsoft documents a persistent-session bug in which omitting -Credential could crash the guest service. If the guest service is hung, connect through VMConnect and, inside the guest, run:
Restart-Service -Name vmicvmsessionThen create the persistent session with an explicit guest credential. This is a documented older-build issue, not a general explanation for every session failure.
“Parameter set can’t be resolved”
Do not use -RunAsAdministrator for a VM connection. Microsoft distinguishes containers from VMs: the flag can provide an administrator connection for containers, while VM connections require guest credentials supplied with -Credential or at the prompt.
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“The credential is invalid”
Check the username and password for the guest, and confirm that the guest has finished booting and has a user account. If you are using the built-in Administrator account, make sure it is enabled.
“The input VMName parameter doesn’t resolve to any virtual machine”
Confirm the VM is on the local host and that you are running the command as a Hyper-V administrator. Use Get-VM to see which VMs are available on that host.
Check the Hyper-V PowerShell Direct service
The guest service used by PowerShell Direct is vmicvmsession, named “Hyper-V PowerShell Direct Service.” Inspect Hyper-V integration services from the guest with:
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Get-Service -Name vmic* | FT -AutoSizeMicrosoft says integration services must be enabled in Hyper-V and running in the guest. Its Integration Services guidance explains the host-and-guest distinction: starting a service inside the guest may not make it functional if it is disabled in Hyper-V, and Hyper-V may restart a service stopped only inside the guest. Change the service’s enablement using Hyper-V controls; use VMConnect to access the guest if you need to restart its service.
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Choose the right PowerShell Direct command
Open an interactive shell
Use Enter-PSSession with the VM name or ID. Supply guest credentials when prompted, then run Exit-PSSession to close the shell.
Enter-PSSession -VMName <VMName>
# or
Enter-PSSession -VMId <VMId>Run a command or script without opening an interactive shell
Use Invoke-Command with a script block or file path:
Invoke-Command -VMName <VMName> -ScriptBlock { Get-Service }
# or
Invoke-Command -VMName <VMName> -FilePath .script.ps1Keep a session open or copy files
Create a persistent session with explicit guest credentials, then use Copy-Item with -ToSession or -FromSession. Persistent sessions are documented for Windows builds 14280 and later. Remove the session when finished.
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$session = New-PSSession -VMName <VMName> -Credential $cred
Copy-Item .file.txt -Destination C:Tempfile.txt -ToSession $session
# To copy from the guest instead, use -FromSession $session
Remove-PSSession $sessionReplace the example VM name and file paths with values for your host and guest. If you use a guest credential prompt instead of a stored credential, omit the credential variable only where the command supports prompting.
When PowerShell Direct is not an option
If the host or guest is outside Microsoft’s documented version requirements, use VMConnect for console access or connect to the guest over a network using an appropriate remote-management method. For a supported local VM, troubleshoot its state, account permissions, credentials, command environment, and integration service rather than changing network settings.
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