On a windows 7 workstation there was no aparent problem with powershell before Windows Management Framework 3 was installed but now simple cmdlets like write-output or get-child do not work. When WMF3 is removed the cmdlets are restored. I looked for a method to remove powershell completely to reinstall but this feature is not in the windows features list. Is there someone who knows how to to fix this?

Hi, It seems the PowerShell is unable to remove, you can refer to Uninstall Powershell in Windows 7 . I suggest you can perform a system restore before you install Windows Management Framework 3. Also, you could use System File Checker tool to scan the system files. Hope this helps. Vincent Wang TechNet Community Support

Hi, It seems the PowerShell is unable to remove, you can refer to Uninstall Powershell in Windows 7 . I suggest you can perform a system restore before you install Windows Management Framework 3. Also, you could use System File Checker tool to scan the system files. Hope this helps. Vincent Wang TechNet Community Support