Can you please check the output of $PSVersionTable in your PowerShell.

To open Powershell press Win+R, type powershell.exe and press enter.

Sure !

@rcmaehl

• The uefi variabel is introduced on Windows 8 first.
• The Powershell commandlets for disk management are not suppoerted on Win7. WMF 5.1 is required for these commandlets.

@htcfreek Might add minimum requirements. Windows 7 is not supported by MS and I really shouldn't be supporting it either, I may add bcdedit though as a non-powershell backup for those on non-english builds having powershell issues.

@htcfreek Might add minimum requirements. Windows 7 is not supported by MS and I really shouldn't be supporting it either, I may add bcdedit though as a non-powershell backup for those on non-english builds having powershell issues.

I have a non-english (german) build and no PowerShell issues.

@htcfreek Might add minimum requirements. Windows 7 is not supported by MS and I really shouldn't be supporting it either, I may add bcdedit though as a non-powershell backup for those on non-english builds having powershell issues.

I have a non-english (german) build and no PowerShell issues.

Yeah, not exactly sure the cause but it seems to heavy bias non-english builds. See #53.

Update : I just noticed than my PowerShell version is extremely old (2.0), so i'm currently downloading the version 7.1.3, which is surprisely still supported on 7.

So if the problem is, as you said it, from non english Windows Installations, I think than this error is "normal" for now.

Update : I just noticed than my PowerShell version is extremely old (2.0), so i'm currently downloading the version 7.1.3, which is surprisely still supported on 7.

So if the problem is, as you said it, from non english Windows Installations, I think than this error is "normal" for now.

If you want to have a newer > version plz install windows management Framework 5.1

If you want to have a newer > version plz install windows management Framework 5.1

It's installed. Thanks.

@rcmaehl
This could help you: https://www.powershellgallery.com/packages/GetFirmwareBIOSorUEFI/1.1/Content/GetFirmwareBIOSorUEFI.psm1

Won't fix, sorry. 😞