Great question! The Windows Startup folder is just one of several ways apps can set themselves to launch automatically when you log in. Let's break down the most common methods, including how tools like Discord do it:

• Registry Run Keys
  This is the go-to method for most consumer apps. Windows checks specific registry entries every time a user logs in, and runs any programs listed there. There are two main keys:

  • User-specific: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run (no admin rights needed, only affects your account)
  • System-wide: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run (requires admin rights, affects all users)

  Discord adds an entry here during installation—usually pointing to its updater executable (Update.exe) with a flag to launch the main Discord app. This lets it auto-update before starting the program, which is why you often see Discord "checking for updates" on startup.

• Windows Task Scheduler
  Apps can create a scheduled task that triggers when you log in (or even when the system boots, regardless of user login). Task Scheduler offers more flexibility than registry keys: apps can set delays, run only on certain networks, or even restart if the program crashes. Some apps use this alongside registry keys as a fallback, or for more complex launch conditions.

• Windows Services
  For apps that need to run in the background before any user logs in (like server tools or antivirus), they register as Windows Services. These are managed by the Windows Service Control Manager and start early in the boot process. Discord doesn't use this since it's a user-facing app, but it's a common method for system-level tools.

• Windows Settings > Startup Apps
  You might have noticed Discord listed here with a toggle switch. This interface is just a frontend that aggregates entries from the Startup folder, registry Run keys, and login-triggered scheduled tasks. Toggling it on/off simply enables/disables the underlying registry or task entry.

How Discord Specifically Does It #

When you install Discord, its installer (which runs with your user permissions, no admin needed for user-level setup) adds an entry to your user-specific Run registry key. The entry looks something like this:

"C:\Users\<YourUsername>\AppData\Local\Discord\Update.exe" --processStart Discord.exe

This ensures the updater launches first, checks for any available updates, then starts the main Discord app. It's a smart way to keep the app up-to-date while ensuring it starts automatically every time you log in.

内容的提问来源于stack exchange，提问作者Recessive