To find the Windows Startup folder using File Explorer in Windows 10:
- Press Windows + E to open File Explorer.
- For the current user's Startup folder, navigate to:
C:\Users\<YourUsername>\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
- For the all-users Startup folder, navigate to:
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup