You want to keep open "My projects" every time you launch DS.
If you want to launch DS with "My Projects" open, check "Reopen projects on startup" in "Design Studio Settings...".
※The box is checked by default.
（Figure１.Opening projects at launch）
If unchecked, DS will launch with all projects closed.
（Figure２．When the box is left unchecked)
If the box is checked, DS will launch with all the projects that were open at the end of the previous session.
（Figure３．When the box is left checked）