Here you should select help and settings and then settings to open the settings window. There should still be stuff in %LOCALAPPDATA\Microsoft\OneDrive. Click the OneDrive icon in the Windows 10 system tray to open up an access panel. In which case, the app is installed into C:\Program Files (x86)\Microsoft\OneDrive. The user has a per-machine install of OneDrive (such is the case if they run the Personal Vault feature). If there's registry keys still lingering around but OneDrive.exe isn't actually present, that's a good hint of a manual uninstall. (Maybe some entry point in the start menu isn't getting cleaned up as a result of the uninstall.) What do these entry points point to? An evidence of uninstall would be to peek at the registry in HKCU\Software\Microsoft\OneDrive.
The user manually uninstalled it from Control panel->Add/Remove Programs. If there is nothing in %LOCALAPPDATA%/Microsoft/OneDrive, that means one of two things: Just share the link with others and they are able to access the content of your files and folders. With a few clicks and you will receive a shared link.
So it's expected that if you run it again, it To share files with others, OneDrive makes it easy. After install, OneDrive.exe will immediately auto-update to the latest version. That's almost always an old setup package that Windows uses to pre-install OneDrive when the user logs in the first time. Now that you are fully aware of Microsoft OneDrive, you might be eagerly waiting to download & install the program on your PC. I assume you mean OneDriveSetup.exe instead of OneDrive.exe is in the Syswow64 folder.
