Registry key deletion

[f4242]

Good morning,

I am trying to delete a registry key in my Eraser installation package.

I first tried using WAPT's native method:

Code: Select all

registry_deletekey(root=HKEY_LOCAL_MACHINE, path=r'SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers', keyname=r'c:\Program Files\Eraser\Eraser.exe')

The installation was successful, but the removal failed.

I then tried with

Code: Select all

run(r'reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /v "c:\Program Files\Eraser\Eraser.exe" /f')

But it makes me angry:

CalledProcessErrorOutput: Command 'reg delete "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Layers" /v "c:\\Program Files\\Eraser\\Eraser.exe" /f' returned non-zero exit status 1.
Output:u"Error: The system could not find the specified registry key or value.\r\n"

However, if I replace "run" with "print" and copy/paste the string into a command prompt as administrator, the deletion works correctly.

What is my problem?

THANKS!

[dcardon]

Hello f4242,

I am trying to delete a registry key in my Eraser installation package.

I first tried using WAPT's native method:

Code: Select all

registry_deletekey(root=HKEY_LOCAL_MACHINE, path=r'SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers', keyname=r'c:\Program Files\Eraser\Eraser.exe')

The installation was successful, but the removal failed.

I then tried with

Code: Select all

run(r'reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /v "c:\Program Files\Eraser\Eraser.exe" /f')

But it makes me angry:

CalledProcessErrorOutput: Command 'reg delete "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Layers" /v "c:\\Program Files\\Eraser\\Eraser.exe" /f' returned non-zero exit status 1.
Output:u"Error: The system could not find the specified registry key or value.\r\n"

However, if I replace "run" with "print" and copy/paste the string into a command prompt as administrator, the deletion works correctly.

What is my problem?

There's probably a WOW64 redirection issue (a 32-bit process doesn't see the exact same registry as a 64-bit process). You can try with:

Code: Select all

with disable_file_system_redirection():
    registry_deletekey(root=HKEY_LOCAL_MACHINE, path=r'SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers', keyname=r'c:\Program Files\Eraser\Eraser.exe')

Sincerely,

Denis

[f4242]

Hello,

it doesn't work with registry_deletekey, but my alternative using run in a with works.

Thank you!

[dcardon]

Good evening f4242,

It doesn't work with registry_deletekey, but my alternative with run in a with works.

Could you try adding WOW6432node?

Code: Select all

registry_deletekey(HKEY_LOCAL_MACHINE, r'SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers', r'c:\Program Files\Eraser\Eraser.exe')

Sincerely,

Denis

[f4242]

Hello,

No, it's still not working.

I'm still on version 1.3.13; I don't know if it could be a bug that was already fixed in 1.5/1.6.