Batch auto answer "y" if registry key values exists

Question

I'm really not used to use batchs...So i'm stuck on a problem : I want to ADD some registry key values but it will prompt :

"key alreday exists, overwrite it (yes/no) ?"

So i would like to make if key value exists echo y and press <enter>

else reg ADD the value....

The fact is i am totally lost in writing batch files, i tried this but i don't know how to make the IF statement...And even less how to automatize the prompt answer !

@echo off

reg query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Patcher || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Patcher /t REG_EXPAND_SZ /d "Updater_Launcher_ENG.exe"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v PatchNum /t REG_EXPAND_SZ /d "184" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v PatchNum /t REG_EXPAND_SZ /d "184"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v IntegratedPak /t REG_EXPAND_SZ /d "projectg500+.pak" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v IntegratedPak /t REG_EXPAND_SZ /d "projectg500+.pak"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Ver /t REG_EXPAND_SZ /d "TH.R4.584.04" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Ver /t REG_EXPAND_SZ /d "TH.R4.584.04"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Launcher Version /t REG_EXPAND_SZ /d "v3.1" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Launcher Version /t REG_EXPAND_SZ /d "v3.1"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Install_Dir /t REG_EXPAND_SZ /d "C:Pangya eXtremV2" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Install_Dir /t REG_EXPAND_SZ /d "C:Pangya eXtremV2"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Argument /t REG_EXPAND_SZ /d "not_used" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Argument /t REG_EXPAND_SZ /d "not_used"

REG query HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Launcher Version /t REG_EXPAND_SZ /d "v3.1" || REG ADD HKLMSOFTWAREWow6432NodeNtreevPangYa_Th /v Launcher Version /t REG_EXPAND_SZ /d "v3.1"

Answer 1

As already mentioned in your subsequent answer, you should use the /F option with Add to force the overwriting of existing value data. Please open a Command Prompt window type reg /? and press the ENTER key to read the usage information.

However, there were several other issues with what you've posted, so I have rewritten the entire thing for you in two possible formats, (as I was unsure of your true intention).

Please note that I have made several, more appropriate, changes to what you posted, please do not modify any of the content I have posted, it has been written using the correct syntax, keys, values and data. Please also remember that this code is adding to a protected area of the Windows registry, so you must be running this script elevated or as a user with the required permissions.

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This is how I'd suggest you perform the task, if you only want to add all of the registry keys, if there is already an existing value named Patcher:

@Echo Off
SetLocal EnableExtensions

Set "Key=HKLMSOFTWARENtreevPangYa_Th"
Set "Reg=%SystemRoot%System32
eg.exe"

%Reg% Query "%Key%" /Reg:32 /F "Patcher" /V 1> NUL 2>&1 && (
    %Reg% Add "%Key%" /Reg:32 /V "Argument" /D "not_used" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "Install_Dir" /D ""C:Pangya eXtremV2"" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "IntegratedPak" /D "projectg500+.pak" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "Launcher Version" /D "v3.1" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "Patcher" /D "Updater_Launcher_ENG.exe" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "PatchNum" /D "184" /F 1> NUL
    %Reg% Add "%Key%" /Reg:32 /V "Ver" /D "TH.R4.584.04" /F 1> NUL
)

---

If you simply want to add all of the data regardless of any existing values, then just this would be all you need:

@Echo Off
SetLocal EnableExtensions

Set "Key=HKLMSOFTWARENtreevPangYa_Th"
Set "Reg=%SystemRoot%System32
eg.exe"

%Reg% Add "%Key%" /Reg:32 /V "Argument" /D "not_used" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "Install_Dir" /D ""C:Pangya eXtremV2"" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "IntegratedPak" /D "projectg500+.pak" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "Launcher Version" /D "v3.1" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "Patcher" /D "Updater_Launcher_ENG.exe" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "PatchNum" /D "184" /F 1> NUL
%Reg% Add "%Key%" /Reg:32 /V "Ver" /D "TH.R4.584.04" /F 1> NUL