How to install this 1.02a patch?

[lord fred]

I'm trying to install this patch, I'm using Windows 10 and it keeps saying to me that it could not retrieve the installation folder, I know that's an old issue and I remember solving it a long time ago. But I already tried unninstalling it 2x, Installed again in other disk, also tried running older patches first, tried running the patch before openning the game, tried running the patch as the game is openned and nothing works. Any helps?

[Lumi]

you need to have started the game at least once before attempting to patch.
the patch needs to be run as administrator.

[lord fred]

Thanks for the help, but I already tried that and no good.

[lord fred]

Fixed: https://www.regfiles.net/registry/splinter-cell-4-double-agent-registry
Use this website to generate a reg file for the game and run it. Now at least the patch launches and it probably works, didn't test it ingame yet.