Why does my Mac computer take longer to boot after I upgraded it with JetDrive SSD? Category : Setup / Operation After upgrading your Mac with JetDrive SSD, please reset the "Start up Disk" by the following steps:1. Find "System Preferences"2. Click "Start up Disk"3. Unlock and set the disk you would like to use as start up disk 4. Reboot Is the answer helpful? Related Why does my SSD request a password before booting up? How to clean install MacOS on the JetDrive 850 Why can't I wake my JetDrive 850 up from Hibernation Mode? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started