Please add Opera browser installer and uninstaller in Global software
[Solved]Silent uninstall is no longer working | Opera forums
Looks like silent uninstall is not supported by Opera anymore which tracks to trying a few tests where it would not silently uninstall.
I just installed it silently in Windows Sandbox. Just did
OperaSetup.exe /silent allusers=1 desktopshortcut=1 startmenushortcut=1 pintotaskbar=1
But I might add launchbrowser=0 in the future, since it launched the app right after the install
This is on version 101.0.4843.43
Just realized you said uninstall lol, I’ll check that out
Well, I learned that it integrates with an API. If you do Launcher.exe /uninstall and just let it hang there, you get access to "C:\Users\<user>\AppData\Local\Temp\.opera\Opera Installer\installer.exe".
Using procmon, it seems that something generates a session with the backend, and proceeds with the uninstall. This is what gets run from a normal uninstall:
"C:\Users\<user>\AppData\Local\Temp\.opera\Opera Installer\installer.exe" /uninstall --installfolder="C:\Users\<user>\AppData\Local\Programs\Opera" --remove-itself-from-temp
But the install uses a lot more parameters, like --server-tracking-blob which seems to have a unique text-blob which can be found in the local appdata temp directory as well. Very convoluted setup though. I’ll keep looking into it some other time