I recently updated my MacBook Pro and now it says I need to restart every time I turn the computer on. It is on a grey screen.

I have not used my MacBook Pro for a few months and when I started it up did all the microsoft and system updates. Now it will not turn on and it goes to a grey page that state "You need to restart you computer. Hold down the Power button untilmitmturns off, then press the Power button again." I have done this several times and keep arriving at the same page.

OK, then there is little else to do other than to reinstall OS X.
Make sure you removed everything connected to the MBP including any USB devices.
If your Mac came with a System Install DVD, then insert it and hold the c key while starting your Mac. This will boot from the DVD instead of your internal disk.
If you find the grey screen reappears then it may not have restarted from the disc, so try again. You have to get past this step to do anything. If you can't, the problem may be a dirty or damaged DVD or an inoperative optical drive.
When it gets to the Mac OS C Utilities screen, select Disk Utility and repair your hard disk. Record any errors that it finds, since your problem may be due to a failed hard disk. If that is the case, the failure will probably arise again.
Then, reinstall OS X. Reinstalling is non-destructive to your user accounts or data.
If your Mac is running Lion, or Mountain Lion, you can boot OS X Recovery and perform all the above without a disc.
Read about OS X Recovery here: http://support.apple.com/kb/HT4718

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Whenever i try to update my macbook pro, it downloads then says I need to restart my computer. I restart the computer, and everything just freezes. When my computer eventually turns back on, its not updated. other apps i try to download dont download also

Whenever i try to update my macbook pro, it downloads then says I need to restart my computer. I restart the computer, and everything just freezes. When my computer eventually turns back on, its not updated. other apps i try to download dont download also

First, do the following:
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.
When you complete the above re-download your OS X upgrade (not sure which one that is, but I assume Mavericks.) After the download is completed re-install it. Hopefully, this time it will do what you expect.

I have recently updated my MacBook Pro and now it crashes once my Desk Top completely loads

Has anyone had a similar problem after loading the latest operating updates?
After switching on the MacBook Pro and entering my password, all goes well until my desktop and icons load. Once this happens it switches itself off.
SOlutions Inc have backed up everything for me, reloaded the older version and all is fine. Then once they try and upload the latest version the whole issue starts again!! This is starting to cost me money!
The Genius Bar at Brighton can't get me in until Sunday 19th April, can anyone help with this issue? I am a novice so any ideas need to be pretty straight forward.
Many thanks
Bonsai Bill

1. This procedure is a diagnostic test. It changes nothing, for better or worse, and therefore will not, in itself, solve the problem. But with the aid of the test results, the solution may take a few minutes, instead of hours or days.
The test works on OS X 10.7 ("Lion") and later. I don't recommend running it on older versions of OS X. It will do no harm, but it won't do much good either.
Don't be put off by the complexity of these instructions. The process is much less complicated than the description. You do harder tasks with the computer all the time.
2. If you don't already have a current backup, back up all data before doing anything else. The backup is necessary on general principle, not because of anything in the test procedure. Backup is always a must, and when you're having any kind of trouble with the computer, you may be at higher than usual risk of losing data, whether you follow these instructions or not.
There are ways to back up a computer that isn't fully functional. Ask if you need guidance.
3. Below are instructions to run a UNIX shell script, a type of program. As I wrote above, it changes nothing. It doesn't send or receive any data on the network. All it does is to generate a human-readable report on the state of the computer. That report goes nowhere unless you choose to share it. If you prefer, you can act on it yourself without disclosing the contents to me or anyone else.
You should be wondering whether you can believe me, and whether it's safe to run a program at the behest of a stranger. In general, no, it's not safe and I don't encourage it.
In this case, however, there are a couple of ways for you to decide whether the program is safe without having to trust me. First, you can read it. Unlike an application that you download and click to run, it's transparent, so anyone with the necessary skill can verify what it does.
You may not be able to understand the script yourself. But variations of it have been posted on this website thousands of times over a period of years. The site is hosted by Apple, which does not allow it to be used to distribute harmful software. Any one of the millions of registered users could have read the script and raised the alarm if it was harmful. Then I would not be here now and you would not be reading this message. See, for example, this discussion.
Nevertheless, if you can't satisfy yourself that these instructions are safe, don't follow them. Ask for other options.
4. Here's a general summary of what you need to do, if you choose to proceed:
☞ Copy a particular line of text to the Clipboard.
☞ Paste into the window of another application.
☞ Wait for the test to run. It usually takes a few minutes.
☞ Paste the results, which will have been copied automatically, back into a reply on this page.
These are not specific instructions; just an overview. The details are in parts 7 and 8 of this comment. The sequence is: copy, paste, wait, paste again. You don't need to copy a second time.
5. Try to test under conditions that reproduce the problem, as far as possible. For example, if the computer is sometimes, but not always, slow, run the test during a slowdown.
You may have started up in "safe" mode. If the system is now in safe mode and works well enough in normal mode to run the test, restart as usual. If you can only test in safe mode, do that.
6. If you have more than one user, and the one affected by the problem is not an administrator, then please run the test twice: once while logged in as the affected user, and once as an administrator. The results may be different. The user that is created automatically on a new computer when you start it for the first time is an administrator. If you can't log in as an administrator, test as the affected user. Most personal Macs have only one user, and in that case this section doesn’t apply. Don't log in as root.
7. Load this linked web page (on the website "Pastebin.") The title of the page is "Diagnostic Test." Below the title is a text box headed by three small icons. The one on the right represents a clipboard. Click that icon to select the text, then copy it to the Clipboard on your computer by pressing the key combination command-C.
If the text doesn't highlight when you click the icon, select it by triple-clicking anywhere inside the box. Don't select the whole page, just the text in the box.
8. Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
Click anywhere in the Terminal window to activate it. Paste from the Clipboard into the window by pressing command-V, then press return. The text you pasted should vanish immediately.
9. If you see an error message in the Terminal window such as "Syntax error" or "Event not found," enter
exec bash
and press return. Then paste the script again.
10. If you're logged in as an administrator, you'll be prompted for your login password. Nothing will be displayed when you type it. You will not see the usual dots in place of typed characters. Make sure caps lock is off. Type carefully and then press return. You may get a one-time warning to be careful. If you make three failed attempts to enter the password, the test will run anyway, but it will produce less information. If you don't know the password, or if you prefer not to enter it, just press return three times at the password prompt. Again, the script will still run.
If you're not logged in as an administrator, you won't be prompted for a password. The test will still run. It just won't do anything that requires administrator privileges.
11. The test may take a few minutes to run, depending on how many files you have and the speed of the computer. A computer that's abnormally slow may take longer to run the test. While it's running, a series of lines will appear in the Terminal window like this:
[Process started]
        Part 1 of 8 done at … sec
        Part 8 of 8 done at … sec
        The test results are on the Clipboard.
        Please close this window.
[Process completed]
The intervals between parts won't be exactly equal, but they give a rough indication of progress. The total number of parts may be different from what's shown here.
Wait for the final message "Process completed" to appear. If you don't see it within about ten minutes, the test probably won't complete in a reasonable time. In that case, press the key combination control-C or command-period to stop it and go to the next step. You'll have incomplete results, but still something.
12. When the test is complete, or if you stopped it because it was taking too long, quit Terminal. The results will have been copied to the Clipboard automatically. They are not shown in the Terminal window. Please don't copy anything from there. All you have to do is start a reply to this comment and then paste by pressing command-V again.
At the top of the results, there will be a line that begins with the words "Start time." If you don't see that, but instead see a mass of gibberish, you didn't wait for the "Process completed" message to appear in the Terminal window. Please wait for it and try again.
If any private information, such as your name or email address, appears in the results, anonymize it before posting. Usually that won't be necessary.
13. When you post the results, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the test results on Pastebin, then post a link here to the page you created.
14. This is a public forum, and others may give you advice based on the results of the test. They speak for themselves, not for me. The test itself is harmless, but whatever else you're told to do may not be. For others who choose to run it, I don't recommend that you post the test results on this website unless I asked you to.
Copyright © 2014, 2015 by Linc Davis. As the sole author of this work (including the referenced "Diagnostic Test"), I reserve all rights to it except as provided in the Use Agreement for the Apple Support Communities website ("ASC"). Readers of ASC may copy it for their own personal use. Neither the whole nor any part may be redistributed.

I just updated my macbook pro and now every time i go to youtube it tells me I have to download the new version of adobe flash player so i do and it still wont let me play it ..

I just updated my macbook pro and now every time i go to youtube it tells me I have to download the new version of adobe flash player so i do and it still wont let me play it ..

Assuming Allan's advice is not correct, and you do run the installer, I think I've heard of that problem and it involves removing the old Flash plug-ins, then install the new version. I don't use it so I don't know what they are called, but will be the /Library/Internet Plug-ins folder.
You can go here and enable HTML5 in YouTube so you don't have to use Flash: http://www.youtube.com/html5
Most(?) of the content is HTML5, but you may run into videos where you still need Flash.

Every time I turn the computer off or put it in sleep mode... when I come back my wallpaper is gone. I have to keep going to my pics and getting it back. Does anyone know why this keeps happening??

Every time I turn the computer off or put it in sleep mode... when I come back my wallpaper is gone. I have to keep going back to my pics and getting it back.
Does anyone know why this keeps happening??

Are you choosing it from one of these folders (in my screenshot) or you can also put that picture into the correct folder. The path is:
HD > Library > Desktop Pictures
If you add it to the folder manually, please restart your computer.
And yes, letting it sleep is a good idea, or else the startup disk will spin and the screen may suffer from image persistence if you leave a window or image parked in the same spot too long, so the screensave is a good idea.

HT201303 I recently bought a MacBook Pro and want to purchase music in iTunes. Can I add my new computer to the computer list from which I can purchase music? I could switch computers if necessary.

I recently bought a MacBook Pro and am trying to purchase music from iTunes. For security, it says that I have a different computer trying to purchase music. Can I switch the computer I purchase my music from?

You can purchase music from up to 5 computers at once.
Just sign in and buy

Just updated on my iMac and now have continual 'You need to restart your computer ...' What can I do?

Just done routine update on my iMac, it asked me to restart and now have continual 'You need to restart your computer ...' What can I do?
on a grey screen I see:
panic (cpu 0 caller 0xffffff800064ba7b): "Unable to find driver for this platform: \"ACPI\".\n"@/SourceCache/xnu/xnu-1699.26.8/iokit/Kernel/I0PlatformExpert.cpp:1 504
Debugger called: <panic>
can't perform kext scan: no kext summary
BSD process name corresponding to current thread: Unknown
Mac OS version:
Not yet set

Same problem on my MacBook Pro and a bunch of more people here:
https://discussions.apple.com/message/18621731#18621731

I am trying to install os x on macbook pro and it keeps saying mac os x can't be install on this computer

i am trying to install os x on macbook pro and it keeps saying mac os x computer, and i don't have any backup to restore

Do you have a retail disc with a picture of a Snow Leopard on it, or is it a gray disc? If it's gray, did it come with the machine you're trying to install on? If it came with a different Mac, it won't work.

I tried updating my Macbook Pro and now it won't work?

I had OS Mountain Lion 10.8.2 for my MacBook Pro (version: late 2012) and I tried updating the operating system. The update was about three out of seven minutes in when a box popped up and said there was an error updating and that the process must restart. I clicked "okay" and waited for a couple of minutes but my screen was all gray and nothing else. I thought my MacBook froze, so I manually restarted it by holding down the power button and then pressing it again and now my screen is gray with the apple symbol and black coded text with writing such as "Unable to find driver for this platform", "Mac OS Version: Not yet set" and "System uptime in nanoseconds: 242856217", along with a series of codes such as " panic(cpu 0 caller 0xffffff8008c59241)". The screen is stuck like this and will not change. I have tried manually restarting it but it just keeps showing this screen. How can I fix this?
Thanks in advance!

Reboot your laptop while holding the alt/option key then I prefer you connect your laptop to an Ethernet cable because wifi gets slow . We'll, now choose the recovery driver. After that choose reinstall whatever software and just wait for a few hours for the thing to install and then your basically done hopefully no files will be earased since that is what I did and everything was perfectly fine no files lost, nothing
Good luck

I updated my MacBook Pro and now when i login in it shuts down by it's self

This morning I did a Software update on my Mac Book Pro (Security Update 2015-003 1.0), I saw the progress bar for it's installation and shortly after my laptop restarted. I typed in my password and the progress bar appeared on my screen - it loaded to about 30% before it froze for 20 minutes; I shut it off and tried to restart. But this time the progress bar loaded to 50% and then it froze so once again I waited and then pressed the power button. I waited a few hours before turning it on again, i typed my password, the progress screen appeared for about a minute as it loaded to about 40% and then it shut off. I tried it twice and the same things happen. I do not have a backup and am worried of losing data.
PS: Just to add i tried to go in to "Safe Mode" by rebooting the laptop as many of the other posts have suggested, but to no luck it just didn't work.

Try booting to recovery and repairing the HD
OS X: About OS X Recovery - Apple Support
Did you turn on FileVailt?
Also see:
http://osxdaily.com/2014/11/22/fix-macbook-pro-booting-black-screen/
This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.

Updated my macbook pro and now it wont turn on

Okay so I'm on my MacBook and there is an update. I update my laptop. It was at 100% and my computer needed to restart for it to update. Update takes 11 minutes, It shuts down. I try to turn it on. You can hear the opening sound but nothing happens on the screen

You do not specify which model Macbook Pro you have. If it is one where you cannot remove the battery, try this:
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Excerpt from http://support.apple.com/kb/HT3964

I updated my MacBook Pro, and now it's to fully restarting.. It's stuck on the grey screen with the loading sign at the bottom of the apple.

How do I fix this issue???

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.a. Boot into Recovery by holding down the key combination command-R at the startup chime, or from a local Time Machine backup volume (option key at startup.) Release the keys when you see a gray screen with a spinning dial. When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
How to back up and restore your files
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire or Thunderbolt cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
How to use and troubleshoot FireWire target disk mode
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 3
Boot in safe mode.* The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
*Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Post for further instructions.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is damaged and the drive is probably malfunctioning. In that case, go to step 5.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 4
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 5
Launch Disk Utility in Recovery mode (see step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 6
Boot into Recovery again. When the OS X Utilities screen appears, follow the prompts to reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Note: You need an always-on Ethernet or Wi-Fi connection to the Internet to use Recovery. It won’t work with USB or PPPoE modems, or with proxy servers, or with networks that require a certificate for authentication.
Step 7
Repeat step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a backup.
Step 8
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested.

I updated my MacBook Pro and now NO video will play. I get a black screen with "Plug in's Blocked" in gray on the display screen. Any suggestions?

I have a black screen instead of any video and Plug In's Blocked written in a gray box. This was after an update for Adobe (?). And can't find how to fix it. Everything else is geat. Tried restarting it and; as you might have guessed I'm not very tecky. Anyone out there? Please help me...I'm hopeless. Thanks

I'm experiencing the same problem as described above and it all started after tha 10.8.2 upgrade.
I had no issues until the last upgrade.
Has Apple responded to anyone about a solution to this problem?
I'm running a Mid-2012 MBP-R also.

HT1338 i recently purchased a macbook pro and idvd is not installed on here. It is not in the app store either. how do i get it?

How can i get idvd on my computer?

It is no longer bundled with Macs.
Do you have an old copy that came with a previous Mac? If not, you can look for an old copy of iLife '11 in the Stores. Make sure it indicates it has iDVD.
Also note that while iMovie (newest version) is no longer integrated with iDVD, you can still export movies from iMovie and import them into iDVD.
Other people have suggeted using Toast.

I have new macbook pro and how long do i need to charge 1 time?

can you help me please?

The MagSafe connector that plugs into the Mac has a pilot light that tells you what the charger is up to. If it glows yellow, batteries are a'charging. If green, batteries are charged and it is on standby mode.

I recently updated my MacBook Pro and now it says I need to restart every time I turn the computer on. It is on a grey screen.

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