My external hard drive for my MAC (my passport essential 3200bmv) was stolen and later recovered by the police. The criminal erased all of my data and used it on his own computer for his files on a PC (which the police erased before giving it back to me). But now I'm not able to save any of my MAC files on it.

I can read whats left on the drive as police only erased the criminals pics etc. It looks as though he might have reformatted it to work with his PC?? I've googled this and can't find answers to figure out how to fix this and format it back to accept my MAC files. Help please!!!
But this time, Western digital has introduced a range of portable hard drives named 'My Passport', which are designed for both Mac and Windows systems. These portable hard drives are shipped in preformatted or in the NTFS (Windows) or HFS+ (Mac) format.
Hey there, MissKeys! First you need to backup the data from the external My Book to your PC. Reformatting it and changing the file system for Mac OS will erase all the data on the external, so just copy the data back to the PC and proceed with the re-formatting. If you want the WD My Book to be read/written by both Windows and Mac, you need to format the drive in FAT32 file system.
Here's a link with a tutorial how to perform this: Afterwards, just simply copy back all the data that you wish to transfer to your new Mac from the PC onto the external. Once your WD My Book is formatted in FAT32 you shouldn't have any issues to read/write to it from both operating systems. Hope this helped! Hey there, MissKeys! First you need to backup the data from the external My Book to your PC. Reformatting it and changing the file system for Mac OS will erase all the data on the external, so just copy the data back to the PC and proceed with the re-formatting. If you want the WD My Book to be read/written by both Windows and Mac, you need to format the drive in FAT32 file system.
Here's a link with a tutorial how to perform this: Afterwards, just simply copy back all the data that you wish to transfer to your new Mac from the PC onto the external. Once your WD My Book is formatted in FAT32 you shouldn't have any issues to read/write to it from both operating systems. Hope this helped!
SuperSoph_WD Thank you so much SuperSoph_WD. Another question for you.I clicked the link you attached and I saw the recommended instructions for the Mac operating systems but the most current they have on their is mavericks and I have the upgrade Yosemite. Will this pose an issue or is it good across the board for all Mac OS's??
To format an external drive on a Mac: Open Finder and go to /Applications/Utilities and double-click on Disk Utility. Select your drive in the left-hand sidebar and go to the Erase tab. With the 6TB My Book Desktop USB 3.0 External Hard Drive from WD it is easy to back up important files and create system backups using the included WD Backup software for Windows or Time Machine for Mac. In addition to simplifying the backup process for both Windows and Mac computers, this hard drive features 256-bit AES hardware encryption to ensure stored files remain secure. If I reformat my MyPassport external hard drive to fit for a Mac. Will I still be able to use the WD Softwares that I downloaded from the website.
Thank you so much SuperSoph_WD. Another question for you.I clicked the link you attached and I saw the recommended instructions for the Mac operating systems but the most current they have on their is mavericks and I have the upgrade Yosemite. Will this pose an issue or is it good across the board for all Mac OS's??
Reformatting Wd My Book Hard Drive For Mac
Hi again, MissKeys! You shouldn't have any issues as kenrivers mentioned! Yosemite is a rather new OS X version, this why it's not listed in the tutorial. The whole procedure of partitioning/formatting your external drive is done through the built-in Disk Utility, which I believe is present on every Mac OS X version. So, go right ahead and format it in Yosemite, it's good across any Mac OS!