What can you do when you see a white screen of death when you turn your computer on

My MacBook Pro had the color wheel rotating when I clicked on a link. It stopped and displayed a white screen. There was no way to force quit or do anything else, so I pressed the power button and turned it off. Since then, I have removed the battery and the cord, replaced them, and turned it back on. It does come on, but it displays the same white screen and nothing else. What is the problem?

Sounds like your hard drive died and the NVRAM got flushed.
You'll have to take it in and/or replace the drive and install your EFI firmware from cd to be able to install OS X back onto the machine.
Install/upgrade RAM or storage drive in Mac's
Restoring firmware on Intel Mac's
How to erase and install Snow Leopard 10.6
For Snow Leopard Speed Freaks

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How can you turn your computer back to the factory settings?

I wanted to reboot my laptop but when i didn't backup my files and then i just went and reboot my laptop and then my recovery disc two doesn't work and when i stop the rebooting and try to go back to the startup it said the bootmgr is missing, so i try to go and reboot my computer again but then it said that factory image has a error or something like that, what do i do to return my laptop back to the factory settings?

Hi,
It looks like you have to order a Recovery dics set from HP. Please use this:
http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=bph07143
Regards.
BH
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What can I do when it says "your system has run out of application memory?

What can I do when it says "your system has run out of application memory?"

The message has nothing to do with low disk space.
There is excessive swapping of data between physical memory (that is, the memory chips on the logic board) and virtual memory (one or more files on the startup volume.) That activity is relatively slow and causes the whole system to be less responsive. It can happen for two reasons:
          A long-running process with a memory leak (a kind of bug)
          Not enough memory for your usage pattern
Tracking down a memory leak can be difficult, and it may come down to a process of elimination.
These instructions are for OS X 10.9 ("Mavericks.") The procedure may be slightly different for earlier versions of OS X.
When you notice the swap activity, open the Activity Monitor application and select All Processes from the View menu, if it's not already selected. Select the Memory tab. Click the heading of the Real Mem column in the process table twice to sort the table with the highest value at the top. If you don't see that column, select
          View ▹ Columns ▹ Real Memory
from the menu bar.
If one process (excluding "kernel_task") is using much more memory than all the others, that could be an indication of a leak. A better indication would be a process that continually grabs more and more real memory over time without ever releasing it. Here is an example of how it's done.
The processes named "Safari Web Content" render web pages for Safari. They use a lot of memory and may leak if certain Safari extensions or third-party web plugins are installed. Consider them prime suspects.
Another process often implicated in memory leaks is "inkjet4" or "inkjet8," which is a component of the HP printing software. If it's present, force-quit the process in Activity Monitor to solve the problem temporarily. Empty the print queues in the Printers & Scanners preference pane (which has a slightly different name in each recent version of OS X.) If you don't use an HP printer, remove the software. Otherwise, if the problem is recurrent, update the software (which may not help) or contact HP support.
"Wired" memory should be a small part of the total. That memory is not swapped, but it makes less physical memory available which may then result in swapping. If you have a lot of wired memory, that's usually an indication of a memory leak in a third-party program that modifies the operating system at a low level. Ask for guidance in that case.
If you don't have an obvious memory leak, your options are to install more memory (if possible) or to run fewer programs simultaneously.
The next suggestion is only for users familiar with the shell. For a more precise, but potentially misleading, test, run the following command:
sudo leaks -nocontext -nostacks process | grep total
where process is the name of a process you suspect of leaking memory. Almost every process will leak some memory; the question is how much, and especially how much the leak increases with time. I can’t be more specific. See the leaks(1) man page and the Apple developer documentation for details.

Can you turn your broadband off ?

Can you turn your broadband off at night or say when you going out, when you turn it back do you receive the same speed,I'm sure I've had this conversation before and I think you can turn it off .Do any of you turn yours off and does it affect your speed I'm pretty sure it's fine to do just want to be sure.

turning the hub of once a day should cause no problem but multiple restarts in day will cause you connection and speed problems i would not recommend turning it on and off they are designed to run 24/7
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How can you authorise your computer to play music previously bought on another computer

How can you authorise your computer to play music previously bought on another computer

Open itunes, Click the word Store at the top of your computer screen, click Authorize

How can you turn your iDevice on remotely because it is offline and i cant track it through find my iphone app

how can you turn your iDevice on remotely because it is offline and i cant track it please help

You can not turn on an iDevice remotely.

Do you turn your computer off?

Hi, I have had my Mac G4 Tower for about 6 or 7 years now. I leave it running 24/7 365 days a year with an exception at Christmas when I turn it off when I go away for about 3 days.
Is this normal for most of you? I've heard it is harder on the computer components to be constantly turn the computer on and off day after day. What do you think?
Is it better to turn off a computer daily or leave it on constantly?
Thanks

Hi-
Some think 24/7 is fine. If it's a server, I agree. If not a server, I don't think daily shutdowns are necessary, but at least sleep it. That's what the function is for. Avoids all the reboot protocols, but allows the machine to rest, cool down, and, most of all, save energy.
Also, I've seen/heard too many times the story of the machine that was left on, only to succumb to power surges, electrical storms, or suffer a panic while unattended, and shut off, leaving the owner wondering what happened.....
I've been sleeping this Sawtooth several times a day since 1999. Not a single component failure in that time.
Funny thing about electrical components. They are all pretty much rated for time (hours) of service. Especially with hard drives, the time on while you are sleeping, is less time for you to use when you're awake.
Others will be by to say different, but, that's my take on the matter.

What can you do when you forget your iPod password and it locks you out?

What can you do when you forget your iPod passcode and it locks you out.

http://manuals.info.apple.com/en_US/iPod_touch_iOS4_User_Guide.pdf

What is the main benefit of buying an ipad ? what can you actually do in 16, 32 0r 64 gb when you have 510 gb laptop with you ?

What is the main benefit of buying an ipad ? what can you actually do in 16, 32 0r 64 gb when you have 510 gb laptop with you ?

For me? the advantage of an ipad over a laptop....instant on, instant off, thin and portable. Check your e-mail and put it down, not wait 5 minutes to boot, check your mail, shut it down.
Is it as fully functional as a laptop? no. Not meant to be. What it lacks in functionality it makes up for in portability.
Is a necessity? no. But quite handy.

HT201210 What can you do when Ipad upgrade said "Ipad cannot be updated at this time because the ipad software update server could not be contacted or is temporarily unavilable. Please try again later.

What can you do when Ipad upgrade said "Ipad cannot be updated at this time because the ipad software update server could not be contacted or is temporarily unavilable. Please try again later.
Where can I download the ipad software myself?

What entries do you have in your HOSTS file on your PC/Mac?
If you have ever used TinyUmbrella your HOSTS file could be redirecting the request to a local server or Cydia.
Look for any entries which redirect gs.apple.com and comment out or remove.

After upgrading to OS5 my i phone is not showing names of incoming callers in my contact directory, i can only see number of incoming caller. Is there any settings to put this right? what can you do?

after upgrading to OS5 my i phone is not showing names of incoming callers in my contact directory, i can only see number of incoming caller. Is there any settings to put this right? what can you do?

This started happening to me on my iPhone 4. Some text messages show only the numer they came from and those same numbers do not show the contact name in my calls list, even though the contacts are saved and synced via iCloud. I have tried to save different versions of the number in the same contact, but it won't work. If I call one of the recent numbers though, the conact comes up. I have tried reseting and restoring to no avail.

What can you do when iPad 2 screen is cracked?

What can you do when iPad 2 screen is cracked? Don't have warranty.

It will cost you approximately US$249
Apple will replace the entire iPad; they don't repair.
http://support.apple.com/kb/index?page=servicefaq&geo=United_States&product=ipad

How can you get your ipod touch open when you forgot the password and its disabled and not connected to wifi

How can you get your iPod touch open when you forgot the password and its disabled and not connected to the Internet Connection and you don't want to reset it.

Disabled
Place the iOS device in Recovery Mode and then connect to your computer and restore via iTunes. The iPod will be erased.
iOS: Forgot passcode or device disabled
If recovery mode does not work try DFU mode.
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
For how to restore:
iTunes: Restoring iOS software
To restore from backup see:
iOS: Back up and restore your iOS device with iCloud or iTunes
If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.
You can redownload most iTunes purchases by:
Downloading past purchases from the App Store, iBookstore, and iTunes Store
If problem what happens or does not happen and when in the instructions? When you successfully get the iPod in recovery mode and connect to computer iTunes should say it found an iPod in recovery mode.

HT1349 I updated my IGO primo, and now it doesn't work at all. what can you advise me

I updated my IGO primo, and now it doesn't work at all. what can you advice me now?

If it's stuck on the Apple logo, you'll have to force it into recovery mode and restore it. See http://support.apple.com/kb/ht1808.

How can you fix your ipod touch when apps are closing on you, how can you fix your ipod touch when apps are closing on you

How can you fix your ipod when apps keep crashing on you while your in that app?

See:
iOS: Troubleshooting applications purchased from the App Store
Contact the developer/go to their support site if only one app.
Restore from backup. See:
iOS: How to back up
Restore to factory settings/new iPod

What can you do when you see a white screen of death when you turn your computer on

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