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 JetDrive fails to restore operating system and the partition of the original drive is grayed out. What can I do? I want to clone the OS to JetDrive on OS X Yosemite (10.10). Why can't I see "Recovery" partition when I press "Option" button at startup? How can I enhance SSD performance if my operating system does not support TRIM? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started