For highest performance and reliability, always install the latest updates and service pack (SP). For Mac computers, go to the Applemenu and select Software Update. For Windows computers, go to the Startmenu and select Windows Update. About Your WD Drive My Passport Ultra for Mac User Manual 2. WD - My Passport Portable hard drive External HDD Manual Set Up Guide for MacBook Pro, iMac, Mac mini, Mac Pro, MacBook Air. Use with Time Machine, Partitio.
Download a third-party software to repair corrupted files in the WD My Passport drive. Make sure to download the software from a trusted source. Launch the software and right-click on the drive. Then, select Check the File System option. Click on the Start button to fix the detected issues. After the repairing process is complete, click Finish. In macOS / OS X Platform Connect your Western Digital My Passport drive to Mac computer, and let the OS detect and mount the drive for use. On macOS Dock, select Finder. When the Finder window opens, on the menu bar, select ‘Go’ and then ‘Utilities.’ After. When the Disk Utility opens.
Note that none of your questions have any thing to do with iPhoto - for specific answer on how to use yoru MyPassport disk you need to contact their suppor tor support forums
By default the iPhoto library is stored in your Pictures folder (not in a my Pictures folder - not sure where you got that) - if you do not have a Pictures folder then you have deleted it - it is there by default on all new Macs
In general for a drive to be used as storage for your iPhoto library it must be formatted Mac OS extended (journaled) - you can check this by selecting the drive in the finder and getting info - it is is not formatted mac OS extended (journaled) you can reformat it using the MyPassport software or disk utility in your applications folder (note that this erases everything on the disk)
Once you have an extrenal drive that is formatted Mac OS extended (journaled)
Moving the iPhoto library is safe and simple - quit iPhoto and drag the iPhoto library intact as a single entity to the external drive - depress the option key and launch iPhoto using the 'select library' option to point to the new location on the external drive - fully test it and then trash the old library on the internal drive (test one more time prior to emptying the trash)
And be sure that the External drive is formatted Mac OS extended (journaled) (iPhoto does not work with drives with other formats) and that it is always available prior to launching iPhoto
Wd My Passport Not Visible
And backup soon and often - having your iPhoto library on an external drive is not a backup and if you are using Time Machine you need to check and be sure that TM is backing up your external drive
For iMovie support it is best to post in the iMovie forum