This is the most reliable, classic method that works for almost any application, shortcut, or script.
The Startup Folder is a simple and straightforward way to add programs to startup in Windows 11. Here's how: how to add programs to startup windows 11 updated
The change is immediate, and the program will now launch on your next reboot. This is the most reliable, classic method that
Windows 11 now respects "Delay Start" for programs in this folder. If you need a program to start 10 seconds after login, you can create a batch script with /WAIT or use Method 3 below. This is the most reliable
Some programs (like browser extensions or updater tools) may start themselves even if they aren't in the standard startup folder. Use the Task Manager to check for these.