If i start up my imac i get a white screen it stays and don't go away. I can't use it..

i tried to restart my computer ( Imac) now for like 5 times. It still gives a white screen and dont go away. Sorry for my english i am dutch.
I really need my Imac for school..

See this User Tip > https://discussions.apple.com/docs/DOC-5282
More Info in this Discussion...
https://discussions.apple.com/thread/4917686?start=0&tstart=0

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My iMac Version 10.6.8 has problems starting up. I often get a white screen without the apple icon.

My iMac Version 10.6.8 has problems starting up. I often get a white screen without the apple icon. Then I must turn the computer off and restart. Restarting will usually bring up the Apple icon and the start screen. What could be causing this? And how can I resolve this issue. My Mac is still under warranty, I've had it just 7 months.

Reset the NVRAM/PRAM and Reset the SMC.

When I turn on my IMAC I get the white screen and it won't start

I was working on my IMAC and it froze, so I restarted it a couple of times. It is now not restarting and I get a white screen and spinning circle. What can I do to get the computer to start up or do I need to take it in to the Apple store.

First, use Disk Utility to repair the drive and permissions. Second, reinstall OS X. This will require booting from an installer DVD or the Internet.
Because you have not provided any information about the exact model you have nor version of OS X installed, I cannot provide more information.

What do I do when I start my iMac I get a white screen with an apple and a moving circle?

All I get when my iMac is turned on is a white screen with an apple and a moving circle. What should I do to get the iMac to boot?

Do you have reliable backup you can restore from, as an erase and re-install may be required?
Before you got down that route, it's possible that it might get fixed if you try again. Not sure about that particular error, but I have had errors in the past that Disk Utility wouldn't fix on the first attempt but then subsequently did.
It's also possible that the (around $99, I think) Disk Warrior might resolve it - but not guaranteed.
However, I just found this thread: https://discussions.apple.com/thread/3862376?start=15&tstart=0 have a look at Nirvi's post at the end - there may be hope (I've not tried this, although it seems to have helped a few, although not everybody - so at your own risk and I wouldn't try it if I didn't have backup).

So every time i start up my comp i get a white screen with a question mark on a file. It also makes the clicking sound that it makes when its thinking. what do i do?

i have tried rebooting with the command+option+p+r keys and that doesn't work
i have tried holding down the shift key and that doesn't work
i have tried inserting the cd that it came with but nothing happened
i have only had it for about a year
am i screwed?

If it is a Mid 2012 model it did not come with a CD or DVD. So I don't know what disc you are using but it certainly did not come with the system. Now if it is older the a 2011 model then those came with optical discs.
Try holding down the Coomand+r key yo boot to the Recovery HD partition. If that doesn't work hold down the Command+Option+r keys until you see a spinning globe in the center of the screen. From that you can use Disk Utility to check the internal hard drive.
But I suspect your drive might be failing or it is totally corrupted. If the system is less then a year old you are still inside the one year warranty period and if you are I suggest you take it to an Apple store to checked out and fixed under that warranty.
Also if the system is still within the one year warranty I suggest you buy the Applecare Extended warranty. You may need it.

I get a white screen and freezes!

Hi guys - im new here and got a problem
I just got a new computer and got a GeForce4 Ti4200 128mb...
ne hoo - it runs fine and stuff... but when i want to play games... such as Counter strike... it loads and stuff.
but when the game starts... ***i get a WHITE screen. and my computer freezes!*** and it happens to other games as well.
Can any of you guys can help solve this problem of mine? Thanks!

He means please visit here first, if problems still remained, follow-up here with your detailed system configuration.

When i turn on my Mac book air I get a white screen with an apple and spinning pinwheel

Why won't my Mac book air turn on? I get a white screen with apple and spinning pinwheel.

If you wish help you are going to have to tell us more then that.
What version of OS X is your MBA running?
What did you change before this started?
Allan

I get a white screen when I turn on my computer

I get a white screen whenever I turn on my computer. What can I do?

Hi Dtrain10591,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
Click on the link to see more details and screenshots.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
Cheers,
- Judy

TS1367 Hallo,I have an IMAC 21.5. which does not start.When i press the power button i hear only beep with an interval of 4-5 seconds.Some times when i take off the RAMS and put them again then get a white screen and shows that i have to insert a bootable

Hallo ,I have an IMAC 21.5. which does not start.When i press the power button i hear only beep with an interval of 4-5 seconds.Some times when i take off the RAMS and put them again then get a white screen and shows that i have to insert a bootable device.Then i bought OSX mountainlion on line and wrote it on a DVD and tried with a USB key board to start the DVD.But does not work.Please help me to get this imac work.
Thankyou in advance for your help.
Terrence

Hey terremo,
Thanks for the question. From the information you provided, it sounds like the iMac is successfully turning on, however video is not displayed. These symptoms can usually be isolated further by the troubleshooting steps in this article:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Thanks,
Matt M.

IMac will not boot up, all I get is white screen help

MY iMac will not boot up, all I get is white screen?
what do I need to do to start machine please?

Start with a google search for white screen site:apple.com and peruse the many hits.

I get a white screen with apple logo and progress bar on my imac mavericks

I get a white screen with apple logo and progress bar ,then computer shuts down
when I turn my imac back on same thing happens,every time same thing
pprogress bar only goes half way then computer shut down
is there a solution ?
if not is there a way to at least salvage some files and docs?
i Have the latest imac 27

Thanks I tried it but after I repaired my disk via disk utility at start up, it told me that
my disk can't be repaired and to try to back up my files so I can format it
but is there to back up my files?
also what I get is white screen with the progress bar not grey

My imac won't boot up. I get a white screen with the apple logo and the spinning spiral--any ideas?

my imac won't boot up. I get a white screen with the apple logo and the spinning spiral--any ideas?
I have started having trouble since i had to upgrade OS the latest in July 12.

http://support.apple.com/kb/TS2570 Follow this article and when it gets to the part where you go into disk utility using your install disc, you'll actually boot up holding down Command and R

I have a iMac (20-inch, Mid 2009). On start up It will sit at the White screen with the logo and the wheel that spins under it. It will not go past this point? Any ideas?

I have a iMac (20-inch, Mid 2009). On start up It will sit at the white screen with the logo and the wheel that spins under it. It will not go past this point? Any ideas?

Question (?) Mark, Blinking Folder, or Gray Screen at Startup
These are related but not identical issues. Their causes are outlined in Intel-based Mac- Startup sequence and error codes, symbols. Solutions may be found in:
A flashing question mark appears when you start your Mac
Mac OS X- Gray screen appears during startup
In most cases the problems may be caused by one or more of these:
a. Problem with the computer's PRAM - See Resetting your Mac's PRAM and NVRAM.
b. Boot drive's directory has been corrupted - Repair with Disk Utility.
c. Critical system files are damaged or deleted - Reinstall OS X.
d. The disk drive is physically non-functional - Replace the hard drive.
Note that the information I have provided is what Apple recommends, If other users suggest different solutions than found here, then be sure what they recommend does not impact on your warranty, if any, or ability to get continuing Apple service.
Please don't start removing drives or changing cables unless you know what you are doing and have exhausted other non-invasive alternatives outlined here. If you perform any work yourself that is unapproved by Apple, then you will void any warranty you may have and lose all further Apple Support.
Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
The main difference if you are using Lion or Mountain Lion is that you must first boot from the Recovery HD. Simply boot from the Recovery HD to perform the above.
Reinstall Snow Leopard Without Erasing The drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Reinstalling Lion/Mountain Lion Without Erasing The Drive
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Imac wont boot - i get a white screen with apple logo, and it loads to about 10%, then screen goes black

imac wont boot - i get a white screen with apple logo, and it loads to about 10%, then screen goes black

Hey there mtriest,
It sounds like you are unable to boot the iMac successfully as it keeps shutting down when you try to boot. I suggest the troubleshooting from the following article named:
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
Disconnect, test peripheral devices and network cables
Note: "Peripheral devices" refers to external devices other than what came with your Mac, such as hard drives, printers, or hubs that you connect via a USB or FireWire cable.
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Disconnect all peripheral devices such as external hard drives or printers (leave only the display, a keyboard, and mouse connected).
Disconnect any Ethernet cables.
Start up your Mac.
If you can start up this way, one or more of your peripheral devices (or installed software related to the device) is probably causing the gray screen issue. Connect one device, then restart your Mac to test for the issue. Repeat the process until you locate the device at issue. Make sure the device is powered if it needs to be to operate correctly. Check with the manufacturer of the device for support or possible software driver or firmware updates that may be available for the device. Try a different cable with the device if possible (such as a different USB or FireWire cable).
Note: If you have multiple peripheral devices and the issue only occurs when they are all connected, but not when each device is the only peripheral connected, see the Additional Information section below.
If you are using a desktop Mac with a third-party keyboard and/or mouse device, and the issue still occurs, try starting up with an Apple keyboard and mouse connected instead. Try starting with no keyboard and mouse connected, then connect them after start up. Also, try a different USB port on your Mac.
If the gray screen issue persists with no devices connected, go to the next section (with the peripherals still disconnected).
Perform a Safe BootSimply performing a Safe Boot may resolve this issue.
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Start your Mac, then immediately hold the Shift key. This performs a Safe Boot. Advanced tip: If you want to see the status of a Safe Boot as it progresses, you can hold Shift-Command-V during start up (instead of just Shift).
Note: A Safe Boot takes longer than a typical start up because it includes a disk check and other operations.
If your Mac starts up as expected, immediately try restarting.
If the Safe Boot does not work, or the restart after a successful Safe Boot does not work, go to the next section.
There is additional information in the article with further troubleshooting if needed.
Thank you for using Apple Support Communities.
Cheers,
Sterling

IMac 27" 3.06ghz white screen for 40 seconds on start up before grey apple

when i start up my iMac 27" 3.06GHZ i get a white screen for 40 seconds before the grey apple appears and it boots up.
If anyone else is experiencing this or has a solution it would be great if you could reply.
Cheers.

Hi guys,
I'm new to the forum, i have recently bought a new imac 27" i7, i don't have any problems with white screens when starting up, the imac runs great, however when i try playing any games thats when the problems start. i installed X-plane it first worked without any problems but not in full resolution, i upgraded the resolution to the maximum imac resolution and from that moment every time i start the game the screen turns white you can hear the imac starting the game and even for a while sound appears, but then after 30 seconds the programs fails and you get a typical apple message.
i have also tried installing need for speed, here i didn't change anything to the graphics however the problem occurred straight away. white screen then the sound of the games menu and crash. did anyone else have this problem? is there a solution to this? i would like to apologize if this matter has been discussed in earlier forums. However i hope there is someone whom is able to give me a helping hand here. Whats wrong???? thanks ruben

If i start up my imac i get a white screen it stays and don't go away. I can't use it..

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