Answer to "Recover data from external drive"Hey, The chances of recovering the data you want go down significantly if you keep accessing the drive you are trying to recover from. Adding and removing more data can corrupt the data of the data you are trying to recover from. To maximize your chances, don't save or download anything you don't need. Download a recovery software There are programs available that can potentially recover those data from you. Just like Wiserecovery. It is highly recommended and mostly used deleted data recovery software. It is equipped with advance tools and latest technologies, that allows PC users to get back the erased content. It can also easily work over various image file. You just need to download it on your PC, after installing this tools you can benefit from it. Read more>> http://www.wiserecovery.com/articles/Sim...-Way-to-Recover-Lost-Data-from-Hard-Drive
Answer to "My mac is stuck on the white startup screen!"Reset NVRAM Sometimes you need to restore the NVRAM to get your computer functioning again, reset the NVRAM by powering down the MacBook; restart and immediately hold down the "Command-Option-P-R" keys simultaneously. When you hear the start-up chime a second time, release the keys. Startup Disk Selection After resetting the NVRAM, you may need to select the startup disk. This issue usually affects computers with more than one hard drive. Start the computer as normal and hold down the "Option" key as the computer starts. When the Startup Manager displays, use the left or right arrow keys to cycle between hard drive options. Select the main hard drive, usually called Macintosh HD, and press the "Return" key. Wait for your computer to boot into the operating system. Safe Mode Starting in Safe Mode also includes an automatic disk check to verify and repair any issues with the operating system software. If you boot into Safe Mode successfully, you can then shut down your computer and attempt to boot normally....