If for some reasons, you need to only temporarily disable your start-up applications from starting up during boot time, you can do so easily.

Simply hold down the Shift key during the logon process.

This will prevent Windows from starting up the programs/shortcuts located in the following folders:

C\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup
C\Users\username\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup

This is especially useful if you need to troubleshoot Windows start-up issues or logon delays.

If you have liked this post, you might want to check out some more, on topics like Logon, Startups, Tips, Troubleshoot.