Hi Teknoskillz:
Thanks for the updated msinfo2.txt file.
I'm not an expert at reading msinfo32 output, but the good news is that the
[Windows Error Reporting] section of your new output no longer has the "
faulting module ntdll.dll" errors your Event Viewer was logging in 2021, and I'm guessing a past sfc /scannow was able to repair this Vista system file. The majority of your errors are now related to your Mypal v68.12.0.8195 browser (faulting module xul.dll), along with the occasional error for WolfMP.exe v0.0.0.0 (faulting module cgame_mp_x86.dll) and DivX Player.exe v11.6.1.10 (faulting module unknown).
Just a guess, but your Mypal / xul.dll crashes might be related to a problematic browser extension (which was often the case with my legacy Firefox ESR v52.9.0 browser - see my 10-Jan-2024 post for general comments about Firefox ESR v52 and Mypal v68 in CB-1's
Internet Problem), but an update to
Mypal v68.14.1 (rel. 05-May-2024) might help. You might also have better luck with the "old"
Mypal v29.3.0 browser offered at
Mypal - Download. I don't use Mypal, but the "new" Mypal v68 is based on the Firefox Quantum engine and is still in development, and that download page suggests that the "old" Mypal v29 is currently the better choice for 64-bit OSs.
I still cannot see the
Windows Installer service (msiserver) listed in the [Services] section of your new output, but once you've answered all my questions in
post # 51 we might have a better idea what happened to this service. The fact that you de-registered this service 3 years ago while troubleshooting might be relevant.
So the Windows modules installer is for Windows updates, then that means the Windows installer service is not showing up in the services readout.
See the first image of my Vista SP2 services in
post # 51. The description of Windows Installer service (msiserver) says this service "
Adds, modifies, and removes applications provided as a Windows Installer (*.msi) package", so I don't think this service is restricted to installation of Windows Updates. I'm not an expert in this area, but as long as this service is missing (or isn't registered correctly) I don't think you will be able to install any application that is distributed as a .msi file. That is why I suggested that you try the .exe installer for the legacy (Win XP and Vista) PDF-XChange Viewer v2.5.322.10 in
post # 56.