DEP invalid paramater

[cobra02]

I try to modify DEP settings for a x64 WIndows 7 Pro workstation with the following command

bcdedit.exe /set {current} nx AlwaysOn

But it fails : invalid parameter

The same command works perfectly on another machine

What's wrong ?

Thanks

 

[iko22]

Hello cobra02,

Safe Boot needs to be disabled in BIOS (if applicable) and the command needs to be run from an elevated command prompt.

 

[cobra02]

thanks iko22 but safe boot disabled and elevated command prompt used and still same issue !

 

[iko22]

Okay. The error means that the BCD store is unable to work with one or both command line arguments.

Try typing these three commands, and see if they are executed correctly:
1.

bcdedit /enum {current} /v

2.

wmic OS Get DataExecutionPrevention_SupportPolicy

3.

bcdedit.exe /set {current} nx OptIn

 

[cobra02]

So this is what I get:

Command 1:

  Chargeur de démarrage Windows
-----------------------------
identificateur          {c33452e9-6035-11e7-9590-e88ff9790913}
device                  partition=C:
path                    \windows\system32\winload.efi
description             Windows 7
locale                  fr-FR
inherit                 {6efb52bf-1766-41db-a6b3-0ee5eff72bd7}
recoverysequence        {c33452ea-6035-11e7-9590-e88ff9790913}
recoveryenabled         Yes
osdevice                partition=C:
systemroot              \windows
resumeobject            {c33452e8-6035-11e7-9590-e88ff9790913}
nx                      OptIn
ParamŠtre incorrect.

Command 2

DataExecutionPrevention_SupportPolicy  
1

Command 3

Paramètre incorrect.

 

[iko22]

Are you using cmd.exe to type the command or are you typing the commands in PowerShell?

If you use PowerShell, the {current} GUID must be enclosed inbetween quotes, like this: "{current}".

 

[cobra02]

cmd.exe is used

 

[iko22]

I have no more explanation to offer you. I am out of further suggestions.
Unless one thing is a problem. Is {current} recognised in your system locale (fr-FR)? Do both your computers have the same system locale?
You could try substituting {current} with the correct OS loader GUID Identifier. So, do the following commands succeed in their execution:
4.

bcdedit /enum {c33452e9-6035-11e7-9590-e88ff9790913} /v

5.

bcdedit.exe /set nx AlwaysOn

6.

bcdedit.exe /set {c33452e9-6035-11e7-9590-e88ff9790913} nx AlwaysOn

?

 

[cobra02]

still the same... returns bad parameter

 

[cobra02]

Is anybody else has a suggestion ?