My Mac wont start How to fix white screen. Recently I had this problem. My Mac would turn on, but it would get stuck on the white screen upon startup after a chime. This white or gray screen means that your mac. OS or OS X cant start because of problems with the systems hardware or software. If your Mac fails to start up regularly, try these few things to troubleshoot your problems. Related Articles. Solid Edge Install Hangs On Removing Backup Files' title='Solid Edge Install Hangs On Removing Backup Files' />NOTE This post linked help files have been updated continuously since inception. Magnavox 557, 53x, 515, 513, 2160A, 2160, 2080 Philips. Windows Store is a digital distribution platform built into Windows 8, which in a manner similar to Apples App Store and Google Play, allows for the distribution and. Solid Edge Install Hangs On Removing Backup Files' title='Solid Edge Install Hangs On Removing Backup Files' />Check out our Step by Step Video Tutorial. Or, if preferred, follow along with the detailed instructions below. Fast Track Disconnect all peripherals. Restart in Safe Mode. Run Disk Utility. Reset NVRAM or PRAMLaunch Single User Mode with Terminal. Reinstall mac. OS or OS XBefore You Do Anything Else, Check Your Peripherals Often its those third party peripherals that get our Macs into trouble. So before you get drastic and try safe mode or other measures, shut down your Mac and disconnect all wired and wireless Bluetooth peripherals except your keyboard, mouse, and anything else necessary to reboot. If you installed any expansion cards, remove those too. If at all possible, use the Apple branded keyboard and mouse that shipped with your Mac. Now reboot your Mac. If it boots up now, one of those disconnected peripherals or a combination of them is the source problem. Add each peripheral back one at a time to determine which ones are the problem. Strictly follow a process of elimination. You might need to shut down your Mac, add one item, and start up again. Ideally, shutdown between each addition. Try a Safe Boot. All Mac. Previous Page Index Next Page 001 PSP Installation Notes Here are several areas of caution that you should consider before and during the installation of PSP. Hundreds of reviews of software and hardware tools used by embedded engineers. Image from nakashiflickr. Painting by Henri Rousseau. One of the best things about visiting art museums is being able to see work that touches and inspires you, and. OS and Mac OS X 1. Safe Boot feature that includes disk checking and repair. A Safe Boot rebuilds your macs Launch Database on your hard drive. Re building this Launch Database often resolves your Mac getting stuck on the white screen. First, start your Mac in Safe Mode. To do this, shut down your Mac. Now Turn on your computer by pressing the power key while holding down the Shift key. Math Magic Pro 8 Keygen. When you see the Apple logo, release the Shift key. After your Mac fully starts, restart your computer normally without holding any keysbuttons during startup. Note that Safe Boot is slower to boot. One you boot and log in using Safe Mode, the very first thing is emptying your Trash After dumping the trash, open a Finder info window on your hard drive default name is Macintosh HD unless you gave it a different name. Verify that this hard drive has AT LEAST 1. GB of available space. If your Mac doesnt have 1. GB free, move some of your largest files to another drive either internal or externalJUST NOT another folder on your Macintosh HD. Look for video files and image files as these tend to be your largest and are easy to move. Once you move those files off your hard drive to another location, delete them from your Macintosh HD and empty the trash. Repeat as often as necessary until you have the minimum 1. GB of available space on your Macintosh HD. Once you reach that 1. GB, restart as normal. Run Disk Utility. Turn your Mac off by holding down the power button for a few seconds. Turn on your Mac and hold down the Command and R keys until you see the Apple logo. Then you should see a Mac OS X Utilities or Mac. OS Utility window. Select Disk Utility, click your Mac. OS or OS X hard drive and select verifyrepair disk. If Disk Utility reports that the volume isnt repairable, the drive needs replacement. Alternatively, if this is the very first time an error has occurred on that drive, you might choose to erase the volume and restore from a backup. Proceed with caution Once a drive fails, its likely to fail again. Recovery Partition Not Showing Up If your Mac fails to boot up into Recovery, there are still a few options. First, try booting up using Internet Recovery by holding down the Command Option R keys until you see the Apple Logo. You must have an internet connection to try this option. If Internet Recovery isnt an option, try bringing up Startup Manager. Press and hold the Option key while booting up your Mac. Once Startup Manager appears, choose how your Mac boots from the on screen options, including any connected bootable hard drives, Recovery partitions, USB flash drives, network locations, and other boot devices. Verify Repair Permissions. If your OS still allows you to run Verify and Repair Permissions, perform that step as well. Unfortunately, starting with El Capitan, Apple removed from Disk Utility verify and repair permissions buttons. Apple claims that all system file permissions are now automatically protected and updated during software updating. However, for El Capitan, you CAN access Repair Permissions using Terminal not so in mac. OS.  This article features the detailed steps on how to fix permissions in El Capital. Reset PRAM or NVRAMResetting PRAM or NVRAM might just fix your boot failure. PRAM parameter random access memory or NVRAM non volatile random access memory is a small amount of your computers memory that stores certain settings in a location that mac. OS can access. This includes settings like your macs speaker volume, screen resolution, startup disk selection, and any recent kernel panic information. If you experience issues related to these features, resetting PRAM or NVRAM might help. How to reset NVRAMShut down your Mac. Find Command, Option, P, and R on your keyboard. Turn on your Mac. Press and hold the Command Option P R keys immediately after you hear the startup sound. Hold these keys until the computer restarts, and you hear the startup sound for the second time. Release the keys. If you have a late 2. Mac. Book Pro, the steps are slightly different. How to reset NVRAM on late 2. Mac. Book Pro models. Shut down your Mac. Find Command, Option, P, and R on your keyboard. Turn on your Mac. Press and hold the Command Option P R keys immediately after you turn on your Mac. Hold these keys down for at least 2. Mac completes the process correctly. Release the keys. After resetting NVRAM, you might need to reconfigure settings for speaker volume, screen resolution, startup disk selection, and time zone information. If issues continue on your desktop Mac not Mac. Books, its logic board battery might need replacing. Take your Mac to an Apple Store or Apple Authorized Service Provider to replace the battery on its logic board. Using Terminal in Single User mode. Most times, the steps above will usually fix your problem. However, if it did not work for you, there are a few additional steps that you can take before you decide to Reinstall mac. OS or Mac OS X on your machine. In this step, you run in Single User Mode using the command fsck, which stands for a file system check. This is a final step before reinstallationplease follow the earlier steps before using Terminal. Be aware that in Single User Mode, you see commands scroll by on screen. This is normal. When this stops, run the commands listed below to check the health of your Macs startup disk. Restart your Mac. When you hear the startup tone, press and hold Command S. Keep holding down these keys until you see a black screen with white letters. This action boots into your macs Single User Mode. The first three steps help you launch into the single user mode on your Mac. Step A.   Shut down your Mac. Step B.   Press the power button to start up your Mac. Step C.  Immediately Hold down Command S for single user mode. Now you have launched your Mac on a Single user mode. The next few steps will help check for file system consistency and remount the boot volume.