I cannot get the operating system back on
after erasing everything off my macbook pro I cannot get the operating system back on. It says my machine cannot be verified.
can yout machine not be verified or can the software not be verified?
If it's the software, you'll need to download Lion again as your isntaller is likely corrupted.
If it is the former, I'm not sure.. sorry
Similar Messages
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I had downloaded OS X Mountain Lion and had to replace my hard drive. Now when I try to download it only wants to upgrade since I show that I previously purchased it. What can I do to get the operating system back
I'm unclear on what the problem is. Have you installed a system on the new hard drive, and if so, what system? Had you actually installed Mountain Lion previously, or only downloaded it? And what does "it only wants to upgrade" mean? Have you actually got Mountain Lion already installed? (See About This Mac in the Apple menu.)
All Macs that shipped with Lion or newer are capable of internet recovery in situations like this. Just hold down command-R and it should start in recovery mode over the internet if necessary. You can reinstall the system from there. If you had Mountain Lion, I would assume that Mountain Lion would be the system you would get reinstalling that way. -
I have bought Mac Os X Mauntain Lion Operating System for my mac book pro some time ago.I then reinstalled my system.The original operating System on my Mac is 10.7 Lion. Now I cannot download Mac Os X Mauntain Lion Operating System.It says"This product is not avaible for Turkish App Store".How can I get this Operating System?
http://www.apple.com/tr/support/
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I'm a green hand on hardware. This question is maybe kind of a silly quetsion.
I already have a data acquisition board installed (built-in) and there is the corresponding program to control it.
Now I need to install another board to the computer, and make the necessary Vi to control the new board. I'm wondering what should be the procedure like? HOW to get the computer know the new board. Should there be any driving program coming along with the hardware. Or the operation system should get to know the existing of the new hardware once it's installed( i mean plug in). Thank you for your kind reply!Hi Fenny,
What is the model number of the second board? If your existing driver has support for this board (which I'm assuming is a NI board, and it's plug and play), your OS (which I'm assuming is Windows) should recognize it when you start up your computer after installation. You can find out the driver support for your board and OS from the link below. If the installation was successful, you should be able to see the new board in the Measurement and Automation Explorer (MAX) under "Devices and Interfaces". If you can see the board in MAX, there will be a device number assigned to the board, which you can use in your VI to communicate with it.
If any of the above assumptions is incorrect, please provide some details (i.e. hardware used, driver you currently have installed, OS, and the application you'd like to use this new board for), and we can work from there.
Data Acquisition (DAQ) Installation/Configuration Troubleshooter
Thanks,
Lesley Y. -
how can I downgrade my operating system as my bluetooth work ok with my holde commodore on the 4.2.1 system but now it is upgraded to the latest system it does not operate properley
thankyou but it looks like we won't be buying another iphone
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I have a Mac Air. I stupidly did something that wiped out the machine and I managed (wow) to get the system back only with the old operation system that was a free upgrade at the time I bought this. Help! Do I have to purchase a new one now? Thanks
If you paid for OS 10.8 at any time, you can get it again at no cost from the App store. You will need to use the same Apple id that you used for the purchase.
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Is there any way that I can get back my iPhoto? After having hard disk replaced (no backup) and the operating system has been updated to Lion (no disc) I am wondering if iPhoto can be reinstalled with my Leopard discs?
As Niel pointed out, yes. The disk probably will look like the MBP disk (4) in this screenshot;
OT -
I just got a new upgrade iphone from a 3G to 4G. My son updated the software with Icloud. I do not like it, it drains my battery. How do I get the old operating system back (without icloud). Also, I don't know how to close an APP anymore and I think that could be draining my battery as well. It doesn't work the same way when I doubled click and then touch the APP it doesn't give me a dash to close it up again.
Apple does not support downgrading the iOS.
As for icloud, go to Settings>icloud, scroll to bottom of screen and tap Delete Account.
As for battery drain...
Look through this...
http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
Also, Settings>General>Background App Refresh: turn off apps you don't want refreshing data - this can preserve battery life.
Also try a reboot: press and hold the home and power buttons until the Apple icon is displayed, then let go. -
I cannot get the wifi feature on my iphone to switch on. I have just uploaded the latest Operating system but nothing has changed. I have reset, again no change. Any ideas?
If you have an iTunes backup that includes the photos you may be able to extract them from the backup using a 3rd party utility such as http://www.wideanglesoftware.com/ibackupextractor/
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Purchased a used macbook pro with Mountain Lion. My old Mac runs Snow Leopard is backed up to Time machine. How do I register the operating system to me and how do I use Time Machine to move my files to the new used computer?
If you look at the User Tips tab, you will find a write up on just this subject:
https://discussions.apple.com/docs/DOC-4053
The subject of buying/selling a Mac is quite complicated. Here is a guide to the steps involved. It is from the Seller's point of view, but easily read the other way too:
SELLING A MAC A
Internet Recovery, and Transferability of OS & iLife Apps
Selling an Old Mac:
• When selling an old Mac, the only OS that is legally transferable is the one that came preinstalled when the Mac was new. Selling a Mac with an upgraded OS isn't doing the new owner any favors. Attempting to do so will only result in headaches since the upgraded OS can't be registered by the new owner. If a clean install becomes necessary, they won't be able to do so and will be forced to install the original OS via Internet Recovery. Best to simply erase the drive and revert back to the original OS prior to selling any Mac.
• Additionally, upgrading the OS on a Mac you intend to sell means that you are leaving personally identifiable information on the Mac since the only way to upgrade the OS involves using your own AppleID to download the upgrade from the App Store. So there will be traces of your info and user account left behind. Again, best to erase the drive and revert to the original OS via Internet Recovery.
Internet Recovery:
• In the event that the OS has been upgraded to a newer version (i.e. Lion to Mountain Lion), Internet Recovery will offer the version of the OS that originally came with the Mac. So while booting to the Recovery Disk will show Mountain Lion as available for reinstall since that is the current version running, Internet Recovery, on the other hand, will only show Lion available since that was the OS shipped with that particular Mac.
• Though the Mac came with a particular version of Mac OS X, it appears that, when Internet Recovery is invoked, the most recent update of that version may be applied. (i.e. if the Mac originally came with 10.7.3, Internet Recovery may install a more recent update like 10.7.5)
iLife Apps:
• When the App Store is launched for the first time it will report that the iLife apps are available for the user to Accept under the Purchases section. The user will be required to enter their AppleID during the Acceptance process. From that point on the iLife apps will be tied to the AppleID used to Accept them. The user will be allowed to download the apps to other Macs they own if they wish using the same AppleID used to Accept them.
• Once Accepted on the new Mac, the iLife apps can not be transferred to any future owner when the Mac is sold. Attempting to use an AppleID after the apps have already been accepted using a different AppleID will result in the App Store reporting "These apps were already assigned to another Apple ID".
• It appears, however, that the iLife Apps do not automatically go to the first owner of the Mac. It's quite possible that the original owner, either by choice or neglect, never Accepted the iLife apps in the App Store. As a result, a future owner of the Mac may be able to successfully Accept the apps and retain them for themselves using their own AppleID. Bottom Line: Whoever Accepts the iLife apps first gets to keep them.
SELLING A MAC B
Follow these instructions step by step to prepare a Mac for sale:
Step One - Back up your data:
A. If you have any Virtual PCs shut them down. They cannot be in their "fast saved" state. They must be shut down from inside Windows.
B. Clone to an external drive using using Carbon Copy Cloner.
1. Open Carbon Copy Cloner.
2. Select the Source volume from the Select a source drop down menu on the left side.
3. Select the Destination volume from the Select a destination drop down menu on the right
side.
4. Click on the Clone button. If you are prompted about creating a clone of the Recovery HD be
sure to opt for that.
Destination means a freshly erased external backup drive. Source means the internal
startup drive.
Step Two - Prepare the machine for the new buyer:
1. De-authorize the computer in iTunes! De-authorize both iTunes and Audible accounts.
2, Remove any Open Firmware passwords or Firmware passwords.
3. Turn the brightness full up and volume nearly so.
4. Turn off File Vault, if enabled.
5. Disable iCloud, if enabled: See.What to do with iCloud before selling your computer
Step Three - Install a fresh OS:
A. Snow Leopard and earlier versions of OS X
1. Insert the original OS X install CD/DVD that came with your computer.
2. Restart the computer while holding down the C key to boot from the CD/DVD.
3. Select Disk Utility from the Utilities menu; repartition and reformat the internal hard drive.
Optionally, click on the Security button and set the Zero Data option to one-pass.
4. Install OS X.
5. Upon completion DO NOT restart the computer.
6. Shutdown the computer.
B. Lion and Mountain Lion (if pre-installed on the computer at purchase*)
Note: You will need an active Internet connection. I suggest using Ethernet if possible because
it is three times faster than wireless.
1. Restart the computer while holding down the COMMAND and R keys until the Mac OS X
Utilities window appears.
2. Select Disk Utility from the Mac OS X Utilities window and click on the Continue button.
3. After DU loads select your startup volume (usually Macintosh HD) from the left side list. Click
on the Erase tab in the DU main window.
4. Set the format type to Mac OS Extended (Journaled.) Optionally, click on the Security button
and set the Zero Data option to one-pass.
5. Click on the Erase button and wait until the process has completed.
6. Quit DU and return to the Mac OS X Utilities window.
7. Select Reinstall Lion/Mountain Lion and click on the Install button.
8. Upon completion shutdown the computer.
*If your computer came with Lion or Mountain Lion pre-installed then you are entitled to transfer your license once. If you purchased Lion or Mountain Lion from the App Store then you cannot transfer your license to another party. In the case of the latter you should install the original version of OS X that came with your computer. You need to repartition the hard drive as well as reformat it; this will assure that the Recovery HD partition is removed. See Step Three above. You may verify these requirements by reviewing your OS X Software License. -
Does iCloud backup the operating system? and how do I back up the operating system.
I have heard you can backup the operating system on iCloud. I have not been able to find documentation on how to backup the operating system. thanks mknmemries54
now sure which operating system I have. It's a new one but not retenal displayWelcome to the Apple Community.
You cannot use iCloud to back up your computer.
Can I suggest you get yourself an external hard drive and start using Time Machine or another back up utility. Data loss is often sudden and unexpected and far too late to do anything about in many cases. -
Cannot move any files into trash to delete them. I get a Trash warning box saying "The Finder cannot complete the operation because some data in 'file name' could not be read or written.(Error code - 36)".Macbook has so much data it is almost not working.
I have tried reseting to factory settings by removing battery and holding down the power switch for more than 5 sec but this does nothing.
Any ideas would be greatly appreciated as I think with so much unwanted data on the desktop and other places the whole os will crash very soon.
Thanks, RickThe hard drive may be dying anyway, or the directory damaged because it is so full. You should never let the hard drive get over 85% full.
A -36 error is a read/write error.
All you did with the power is reset the SMC. Does nothing to reset everything to factory settings.
Do you have your original 10.4 installer discs for the MacBook?
Is your data backed up? -
I just installed OS X Yosemite on my MacBook. I now cannot get the computer to start up. If I hold down the power button to try and power it back up, it will not start. Any ideas on how to fix this?
Reinstalling OS X 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.
Reinstalling OS X Without Erasing the Drive
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 and press the Continue button. After Disk Utility loads select the Macintosh HD entry from the the left side list. Click on the First Aid tab, then click on the Repair Disk button. If Disk Utility 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 Disk Utility and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Continue button.
Download and install the OS X Yosemite 10.10.3 Combo Update.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Alternatively, see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless. -
The Operating System returned Error 27(The drive cannot find the sector requested.)
On a Windows 2008 R2 server running SQL 2008 Standard on a Raid 5, when performing a backup on the databases via copy to another local drive I receive and The operating system returned error 27(The drive cannot find the sector requested.) to SQL Server during
a write at offset 0x0000002fd204000 in the file F:\SQLDATA\Email_Images.mdf. The server is a HP DL380p Gen8. I've contacted HP thinking this was a Hardware issue but HP ensure me its not and to contract Microsoft support.Hi,
Unfortunately, the available information is not enough to have a clear view of the occurred behavior. Please offer us what backup method you are using, did you want to backup
the data to the CSV, the origional error you have got.
1. The best method would be to have separate disk drive for each cluster SQL instance and add the disk to the specific SQL group and add it to the dependency of the SQL resource.
There would be less overhead with this process other than having to create two disks, one of each instance
2. You could consider creating a file sharing resource on cluster and add the backup disk to this resource group and use it to back up the databases of both the instances
to single disk. The down side of this method would be, all the databases backups will fail if the fileshare resource goes down. You cannot use GUI to take the backup, need additional setup/maintenance for the fileshare resource group
http://support.microsoft.com/kb/224967
I’m glad to be of help to you!
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place. -
Trying to reinstall MX882 Canon printer after upgrading to OSX Mavericks. Printer will not print and I get a message "The system extension "/System/Library/
Extensions/AppleUSBEthernetHost.kext" was installed improperly and cannot be used. Try reinstalling it, or contact vendor for update."
What do I do and where is this extension?beverly216 wrote:
What do I do and where is this extension?
I would recommend you download and install the OS X 10.9.5 Combo Update.
That file is part of the operating system and it is located where the error shows, i.e. HD > System > Library > Extensions. It would seem that when you updated, this file and maybe others have not updated correctly. So running the Combo Update may help resolve this.
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