![Lacie Hard Drive Won T Connect To Mac Lacie Hard Drive Won T Connect To Mac](https://www.macworld.co.uk/cmsdata/slideshow/3594425/best_mac_hard_drives_lacie_mobile_drive_800.jpg)
Double click on that and when it opens you will see your hard drive (usually Macintosh HD) on the left. Highlight your hard drive and click on Verify Disk on the far right. If that is OK click on Repair Permissions on the left. If Verify Disk is not OK try to Repair. If Repair is successful then Repair Permissions if it is not successful let me. Sep 11, 2015 Sometimes on Mac the USB port you have access to is on a shared hub, giving less power. The port on the other side is not sharing, and has more to give to external devices like hard drives. A family member had the same problem. HDD won't work on one side, worked on the other side's USB port. Here's how to reformat your drive so it can be read by and Mac or a PC. Open Disk Utility (as per the steps above). If you don’t require the data on the hard drive, select the disk and click Erase.
![Drive Drive](https://9to5mac.com/wp-content/uploads/sites/6/2015/01/mirror_usecase_cord_penon.jpg)
It depends entirely on the current format of the hard drive. If it's formatted as FAT32, you can read and write from either a PC or a Mac (but there's a single file size limit of 4 GB). If it's formatted as NTFS, on the Mac you can read from the drive but not write to it.
The best format for use with the Mac is Mac OS Extended (Journaled) - that format cannot be read from or written to from a Windows PC.
You can connect the drive to your Mac, and launch Applications > Utilities > Disk Utility to determine the format of the external drive. That's also the application you'd use to reformat the drive as Mac OS Extended (Journaled) if you choose to do so (that process will erase the drive, but you could move your data to your internal drive, then reformat, then copy it back).
The best format for use with the Mac is Mac OS Extended (Journaled) - that format cannot be read from or written to from a Windows PC.
You can connect the drive to your Mac, and launch Applications > Utilities > Disk Utility to determine the format of the external drive. That's also the application you'd use to reformat the drive as Mac OS Extended (Journaled) if you choose to do so (that process will erase the drive, but you could move your data to your internal drive, then reformat, then copy it back).
Lacie Hard Drive Won't Connect To Mac Mojave
Clone partition mac. Oct 14, 2008 9:14 AM