[Python] How should I write custom install and uninstall nsis for electron builder?

hello, I am building an electron app.

I need to do 2 things while installing the app

1.set custom installation path


here is the the code how I done the first step

!macro preInit
SetRegView 64
WriteRegExpandStr HKLM "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
WriteRegExpandStr HKCU "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
SetRegView 32
WriteRegExpandStr HKLM "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
WriteRegExpandStr HKCU "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
!macroend


And in the package.json build field I write this:

"nsis": {
"deleteAppDataOnUninstall": true,
"oneClick": false,
"allowElevation": true,
"installerIcon": "build/icon.ico",
"uninstallerIcon": "build/icon.ico",
"installerHeaderIcon": "build/icon.ico",
"createDesktopShortcut": true,
"createStartMenuShortcut": true,
"shortcutName": "BSD",
"perMachine": true,
"include": "build/installer.nsh"
}


Its working fine

2.run a command line to install the python


I dont know how to do the 2 setp which is to install the python if not installed.
which mean I need to run python -V to check the response is null or not
and then based on the response to consider install the python or not here is the command line to install python pathOfpython.exe /repair /quiet InstallAllUsers=1 PrependPath=1

And I need to do 2 things on uninstalling

1.remove the folder C:\Windows\BSD as administrator which is my app installaing path


In my understanding it will done if I spcified the installation path which is C:\Windows\BSD but when I uninstall my app the installation folder did not removed I dont know what is going on.

2.run a command line schtasks /Delete /TN ${taskName} -F as administrator


This line of code will remove the task which created by my app
This is simple if I know how to run a command line as administrator from nsh file. But currently I dont know how to do that

Thanks!!!

Updates


I done the 3 steps of the 4 steps here is the code

!macro preInit
SetRegView 64
WriteRegExpandStr HKLM "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
WriteRegExpandStr HKCU "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
SetRegView 32
WriteRegExpandStr HKLM "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
WriteRegExpandStr HKCU "${INSTALL_REGISTRY_KEY}" InstallLocation "C:\Windows\BSD"
!macroend

#This one not working
!macro customInstall
File {$SOURCEPATH}\\python-3.11.0.exe
ExecWait '$PLUGINSDIR\python-3.11.0.exe /repair /quiet InstallAllUsers=1 PrependPath=1'
!macroend

!macro customUnInstall
ExecWait "schtasks /Delete /TN BSD-TASK -F"
ExecWait "del /f C:\Windows\BSD"
!macroend


But I stucked at at installing the python the error says thereis no file called python-3.11.0.exe
Here is my build folder


Here is the error:

Processing script file: "<stdin>" (UTF8)
















Error output:
File: "{$SOURCEPATH}\\python-3.11.0.exe" -> no files found.
Usage: File [/nonfatal] [/a] ([/r] [/x filespec [...]] filespec [...] |
/oname=outfile one_file_only)
Error in macro customInstall on macroline 1
!include: error in script: "installSection.nsh" on line 79
Error in script "<stdin>" on line 192 -- aborting creation process
at ChildProcess.<anonymous> (C:\Users\OnTheRoad\Desktop\learningCodes\react\child-controller\node_modules\builder-util\src\util.ts:250:14)
at Object.onceWrapper (node:events:628:26)
at ChildProcess.emit (node:events:513:28)
at ChildProcess.cp.emit (C:\Users\OnTheRoad\Desktop\learningCodes\react\child-controller\node_modules\cross-spawn\lib\enoent.js:34:29)
at maybeClose (node:internal/child_process:1100:16)
at Process.ChildProcess._handle.onexit (node:internal/child_process:304:5)

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