Can’t reinstall Webcam Software on HP DV5 Windows 7

some time ago I uninstalled the webcam drivers and software “just in case”, haha, for privacy, to know “the webcam is not avaiable to browsers or whatever (I know it sounds paranoid). Today I tried to reinstall the drivers and software but it doesn’t work. The HP Webcam is in “imaging devices” but it’s the old Windows driver, not the HP newer driver, and the cam software is not installed. (I’ve searched in Program Files, Program Files (x86), start menu, the list of installed programs, everywhere). The thing just doesn’t install anything, not the updated driver, not some splitter/codec/demuxer that should be there (I checked with the klite tools), and not the Webcam program (one of those programs with effects and stuff).
To be more specific:
-hp pavillion dv5 1140ez
-windows 7 ultimate x64 SP1
-the installer is called Webcam_Software_sp50497.exe

I tried uncompressing it and installing it manually but it didn’t work either.
I also reinstalled just in case all the drivers, directx, vcredist runtimes, HP’s “framework software”, whatever it is, I reinstalled everything that came with the PC.

Here are the logs of the installation:
-cpeExitCode.txt says only:
ExitCode=0

-HPMSWEBCAM.LOG says:

13/12/2024 15:58:56,31 —– “HP MediaSmart Webcam” (“4.1.2.3130”) —–

13/12/2024 15:58:56,31 Executing block: “HPMSWebcam”
13/12/2024 15:58:56,31 TouchInput detection: 0
13/12/2024 15:58:56,31 Installing MediaSmart Webcam …
13/12/2024 15:58:56,31 Uninstallation Dir: “”
13/12/2024 15:58:56,31 Current working directory: C:UsersAdminNBAppDataLocalTemppftCC36.tmpsrc
13/12/2024 15:58:56,32 Install command: start /w setup.exe /S /v /qn /z/ms
13/12/2024 15:59:00,91 The Exit Code is: 0
13/12/2024 15:59:00,91 *** Block execution completed. Status=-3

13/12/2024 16:02:30,41 —– “HP MediaSmart Webcam” (“4.1.2.3130”) —–

13/12/2024 16:02:30,41 Executing block: “HPMSWebcam”
13/12/2024 16:02:30,41 TouchInput detection: 0
13/12/2024 16:02:30,41 Installing MediaSmart Webcam …
13/12/2024 16:02:30,41 Uninstallation Dir: “”
13/12/2024 16:02:30,41 Current working directory: C:UsersAdminNBAppDataLocalTemppft10C4.tmpsrc
13/12/2024 16:02:30,41 Install command: start /w setup.exe /S /v /qn /z/ms
13/12/2024 16:02:37,47 The Exit Code is: 0
13/12/2024 16:02:37,47 *** Block execution completed. Status=-3

-and finally wizinstaller.log says:

Memory 4064 MB
Executing on .WizInstaller.ini on viernes, 13 de diciembre de 2024 at 15:58:56 for en_uy

Executing ‘.MsWebcamInstall.bat’, Param ”, Working Directory ‘C:UsersAdminNBAppDataLocalTemppftCC36.tmp’
Wizinstaller Instance ID : {788D1A6E-E326-4A1A-8F22-135A4E7B0E16}
Init : 63
Action : 4680
Uninit : 0
Memory 4064 MB
Executing on .WizInstaller.ini on viernes, 13 de diciembre de 2024 at 16:02:30 for en_uy

Executing ‘.MsWebcamInstall.bat’, Param ”, Working Directory ‘C:UsersAdminNBAppDataLocalTemppft10C4.tmp’
Wizinstaller Instance ID : {1F914E7C-B32D-40AD-AEE0-FF76671341F2}
Init : 31
Action : 7160
Uninit : 0
“.

Any ideas?