Step 1 first of all look for the external hard drive in the finder window.
Lacie rugged hard drive not showing up.
For this click on file and then click new finder window.
Connect the lacie external hard drive to your pc via its usb cable.
Listen for the internal disk to speed up and then click.
Open file explorer and check if the external hard drive appears.
Check lacie external hard drive state.
If you have followed all of these steps and the drive is still not recognized shut down your computer wait 3 to 5 minutes restart your computer and try again.
Here you can see what the drive looks like to windows.
If not open disk management and check the external hard drive state.
With the drive connected open disk management search for computer management disk management.
Power up the drive and put your ear next to it.
Now look for the drive below the remote disk.
Lacie drives conserve power by spinning down when you set your computer to sleep mode.
Follow the guidelines to make your lacie external hard drive detectable again.
Unfortunately in that case you will need to contact a data recovery company in case the data stored on the drive is really important.
If you right click on the lacie drive shown you may have the option to format the partition s ntfs for windows or you could convert the entire disk to a mbr disk.
Try disconnecting the firewire usb cable from the drive and take the drive to a quiet place.
Most of the hdd manufacturers offer their own data recovery.
Step 2 if the external drive is not there make sure that usb cable is properly plugged in the external hard drive and the port.