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 Can't access the BootCamp control panel on my Windows System. Is a static-free environment required when I swap the JDM (SSD)? Do I need to remove the battery before installing JetDrive SSD? Technical Support If the answer can't help you, you can contact the Tech Support Department Get Started