Reinstalling OSX to new drive

I recently received a brand new shiny Mac Pro (thanks to AppleCare) after my G5 went belly up. It came with only one 500GB drive and 1GB of memory. I upgraded to a total of 5GB of memory and put in 3 additional 500GB drives. 1 WD SE16 for backup of main drive and two WD RE's striped RAID 0 for storage needs.
From the very start I was noticing problems. After starting it up for the very first time I got the dreaded spinning beachball. This was during the simple set up of the computer. After a minute of spinning I clicked off to the side and it finally came back to life, skipping one of the setup screens. Things seem to be acting very buggy. Safari has crashed. Photoshop has missing buttons. After Effects...don't even get me started with that. IPhoto has greyed out selections when it shouldn't be.
Now I know that After Effects has its problems. I've researched and realize I'm probably going to have to upgrade to CS3. But everything seems off.
I've run Apple Hardware Test (both regular and extended) and everything comes up roses. I don't know if it was a bad install of OSX or if somehow the original drive from apple is faulty.
I would like to do a fresh install (not a clone of the original HD) of OSX onto the WD SE16 and install some apps and see if there is a difference.
Can I just put the install disc in and tell it to install the OS to the WD SE16 without harming/erasing any of the other drives?
If I can do this is there anything I have to do to make sure that the computer starts from the correct HD?
I appreciate your time and input. Thanks.

Can I just put the install disc in and tell it to install the OS to the WD SE16 without harming/erasing any of the other drives?
Yes. Just be aware that you need to boot from the installation DVD to install to any drive, even though it's not the boot drive.
I can do this is there anything I have to do to make sure that the computer starts from the correct HD?
When it reboots after the installation it'll be set to boot from the drive it installed to. If you're concerned you can hold the Option/Alt key and manually select it but it'll do the right thing.

Similar Messages

Reinstalling OSX on new hard drive without reinstalling other programs?

Hi,
I've been having numerous problems with Logic Pro for a while, especially with core audio overload messages with more than a few tracks of VSL (large samples).
I was advised to run Onyx, which told me my main system drive needed repair. I ran Disk Utility from the Boot disc, but this could not repair the drive.
I then tried Diskwarrior with a similar result - DW reported that it had set up the new directory but could not remove the old one due to a disk problem. When I look at the system directory it looks the same though.
I still have the problems with Logic, so I guess it's time to replace the system hard drive. I'd be grateful for help with how to go about it, in particular with avoiding reinstalling Logic and all the plugins I've installed with it if possible as this would be a massive pain.
I have a second internal drive for audio which has a reasonable amount of space on it which can be used. This is a new drive as the old hard disk also became damaged - is there any event which could have led to both disks being damaged? Or is it just coincidence?
Any help gratefully received. I'm going nuts trying to fix this problem.
Thanks
Jamie

Hi Jamie,
Two possibilities I see for what you want...
1. I've used that DiskWarrior Alias to actually clone the whole works to another drive using Tri-Backup...
http://www.tri-edre.com/english/tribackup.html
Though it may work to use...
Carbon copy cloner...
http://www.bombich.com/software/ccc.html
SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
But that may wipe things off the other drive if you don't know how to avoid it.
2. Install OSX fresh on the other Drive, then 1st time it boots up see if Migration Assistant can pull all your stuff over from the 1st Drive.

Advice on reinstalling OSX & OS9-partition drive?

I have just replace the hard drive in my PB g4 15" Titanium. The new one is 120 GB ar 54000mhz. I also upgraded the optical drive to a superdrive, but that isn't so relevant to this issue.
I would like advice on the best way to install the system now on my new clean drive. I have a few archaic applications I need to use, but that will never upgrade to OSX, so I will need to keep OS9. Can I partition the new drive (120 GB) and install OS9 on a separate partition? Is there any advantage to doing this? I am wondering if my machine will run faster and more smoothly if OS9 is segregated from X. If I do partition it, how much should I allocate to the partition with 9? I don't even know how to partition a drive, but I am assuming I will find instructions when I put in the system disk or boot with Tech Tools. I would appreciate any advice before I install. If the answer is to just install both in the one partition, then should I insntall 9 first and then Tiger or Tiger first? It seems there is some kind of workaround to be done if 10 is installed first.

Hi, Sewcial.
Can I partition the new drive (120 GB) and install OS9 on a separate partition?
Yes.
Is there any advantage to doing this?
Yes, small ones:
- The Startup Manager will show both OSes when you hold down the Option key at startup, and will allow you to choose either one to boot into, if they're on separate partitions. It won't if they're on the same partition.
- Reinstalling OS 9, if OS X is already installed, is marginally easier when you're installing it on a separate partition from OS X.
There is also at least one small drawback: Any space you devote to the OS 9 partition is not available to the OS X partition, which may eventually need it more than OS 9 or your OS 9 applications do.
I am wondering if my machine will run faster and more smoothly if OS9 is segregated from X.
No, it won't. It will make little or no difference either way.
I don't even know how to partition a drive, but I am assuming I will find instructions when I put in the system disk or boot with Tech Tools.
Boot to your OS X installer Disc 1 and open Disk Utility from the Installer or Utilities menu. Select your hard drive in the left pane of DU, click the Partition tab, and do as you're told. Consult the online DU Help if you get stuck. Be SURE to install the OS 9 drivers (a checkbox in the DU window) on both partitions, if you want OS 9 to be able to see both — and believe me, you do.
If I do partition it, how much should I allocate to the partition with 9?
I would allocate 1GB more than your OS 9 System Folder and your Classic application folders will occupy. The space needed by this stuff is far more likely to decrease with time than to increase, while the space needed by OS X and its applications is certain to increase. All the documents you create using OS 9 can and probably should be stored on the OS X partition rather than the one with OS 9 on it. That way you won't have to back up both partitions frequently, and all your documents will be consolidated in one place.
If the answer is to just install both in the one partition, then should I insntall 9 first and then Tiger or Tiger first? It seems there is some kind of workaround to be done if 10 is installed first.
Every dual-bootable Mac, including all Tibooks, was shipped from the factory with both OSes installed on a single partition. It's simple, it works, and in the absence of special needs, it's fine for most users. It would probably be fine for you. But I seem to recall it's true that there's some trick to installing OS 9 on a volume (partition) that already contains Tiger — and not being a Tiger user, I'm not familiar with the necessary procedure. For advice on that, repost in the Classic forum or the Tiger Installation & Setup forum.
Good luck!

Old HHD failed, how can I install an OSx onto new drive?

My old stock HDD failed, and I had to replace it. I have time machine on an external hard drive, and am using it to communicate here. However, when I try to install an OSx (Mountain Lion) onto my new drive, it says: "Cannot install OS. Contact AppeCare." I used disk utility to make sure it says Mac OS Extended (Journaled). What can I do?

Try this: Boot the MBP with the OPTION+COMMAND+R keys. The display should result in a picture with a revolving globe. If you follow the directions, this will connect you to the Apple servers. You then will be able to install the original OSX that came with the MBP (Lion). Do not forget to format the HDD in Disk Utility>Erase (to Mac OS Extended (Jourrnaled)) before installing the OSX.
If you had Mt. Lion on that MBP, it should be in your App Store account. You may download it from there.
You will need a solid Internet connection.
Ciao.

Reinstall OSX on New Mac Pro

Hi,
I have a new Mac Pro and I want to rebuild it. I have a bootable USB Key that I made with the 10.9 installer from the App Store. This installer works as a bootable image for the old Mac Pro's and for MacBook pro's, but I can't get a new Mac Pro to boot from it. I think the issue might be that it is a different 10.9 revision that the new Mac Pro requires. Has anyone successfully done this yet on the new Mac Pro?
Thanks
Dave

You would need to do a full Internet Recovery like so:
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

Tried updating Macbook to Yosemite - drive crashed - now trying to reinstall Lion on new drive but it is 'temporarily unavailable' HELP PLEASE

Last night, I tried updating my Macbook to Yosemite. It crashed mid way - telling me the drive needs repairing.
I am now following these instructions below. I backed up all of my work before the update, however not my iTunes / iPhoto. I would like to do this. My next step is to reinstall Lion on my external hard drive however it is 'temporarily unavailable'.
Does anyone know a way around this? I assume you can no longer install Lion cos Apple move so quickly.
These are the instructions I am following at the moment :
Installing Mavericks but disk damaged, no recovery or safe modes
Help appreciated!

I don't understand why some online forums are saying to click "erase." This is a brand new external hard without any files on it.
Just use Disk Utility to erase the drive. Select HFS+ (Journaled). It should then become a Mac HFS+ drive.
Also, if I use time machine, will my files be deleted off my computer and only saved on the external hard drive, or will it still be on my computer as well as the external hard drive? I have never backed up my files, so please explain to me what I should do and whether I will have files in both places.
TM is for backing up stuff. It woudn't make much sense to be a "backup" if it deleted the originals of the stuff it was backing up would it? So you end up with the source (original) stuff and the destination backup.
Lastly, if I am thinking about updating my software to a newer version (such as OX lion) is it better to back up files now or wait till after I update the software? I am not sure if it makes a difference.
I always say never ever update your system without a backup to fall back on in case something should go wrong with the update, and in the case of lion, you don't like it, and want to go back to Snow Leopard. So yes, it makes a big difference!
Update:
The following is for 10.4 but it's good enough to show you the erase operation in disk utility:
Erasing a disk or volume
You might also want to look at this:
Format Your Hard Drive Using Disk Utility
Finally, TM isn't the only way to back stuff up. There are many 3rd party backup utilities as well. Two of the more popular ones are Cabon Copy Cloner and Super Duper.

Does reinstalling OSX delete the data on the drive?

Does reinstalling OSX via recovery drive delete any data on the drive? Basically, I think the install of yosemite I have now is messed up and needs to be redone. Safari doesn't open in normal start up mode but opens in safe mode. I figured a reinstall of OSX would help? Does reinstalling it remove all the data on the drive? Or does it detect that there is data there and leaves it alone? Thanks in advance.

Hey Kpe413,
Thanks for the question. Using the built-in recovery disk to reinstall OS X will keep your files and user settings intact. However, you should always make a back up of your data via Time Machine or manual methods in case you run into any issues. For more information, check out the following resources:
OS X Yosemite: Reinstall OS X
http://support.apple.com/kb/PH18872
Mac Basics: Time Machine backs up your Mac - Apple Support
http://support.apple.com/HT201250
Thanks,
Matt M.

I need to migrate Firefox profile settings from an install on a drive where the Windows 7 OS has been corrupted to a new drive and current Windows 7 install of Firefox is active. Is there any solution? Thanks.

Had to reinstall Firefox on new drive with new install of Windows 7.
Missing all of my profile settings.

http://support.mozilla.com/en-US/kb/Recovering+important+data+from+an+old+profile
Your old Profile is located here in Vista & Win7: <br />
''drive'':\Users\''Windows login user name''\AppData\Roaming\Mozilla\Firefox\Profiles\''profile_name''

Cant reinstall osx lion on new hard drive

I recently have been having problems with my 2007 Macbook 2,1 (yeah, I know it's old but it works...or worked anyway) taking forever to boot up. So, I backed up all of my data to an external drive, erased the drive and then attempted to reinstall osx lion (which was the current os on the machine prior to erasing) via the internet recovery option as I no longer have the original start up disc. The progress bar gets all the way to the end and then just takes me back to the main OSX utilities page. Tried reformatting the drive again and same thing. So then I resorted to creating a bootable thumb drive. I booted back into OSX utilities via this drive and tried to reinstall this way only to get an error message that it cant download additional files needed to install osx.
Next up, I used a borrowed mac, redownloaded the OSX installer from the app store and installed it on an external drive. I then booted my machine from the ext. drive into OSX lion, downloaded the installer again and attempted to install it on to my HD only to get an error message that the file may be corrupt or may have been tampered with. At this point, i went to the Apple store. The guy ran some checks but ultimately was also unable to reinstall the os. He even tried going back down to 10.6.8. So he told me this was a sign that the hard drive was bad and that they have no way of actually diagnosing it on a machine that old.
So, I went and bought a new WD 320G internal drive to replace the "bad" one in the machine. I then went through all of the steps above again and still have had no luck getting the os back on the machine. So at this point I am at a total loss. Is the computer just dead or is there anything else I could possibly try?

Did you prep the new drive correctly? You also need to install Snow Leopard on the new drive and update it to 10.6.8.
Drive Partition and Format
1. Boot from your OS X 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.
If you are preparing an external or a non-startup drive, then open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Apply button and wait until the process has completed.
4. Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
In the following you can skip the part for partitioning and formatting if you've done the above already.
Clean Install of Snow Leopard
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

Installing new drive for OSX-How do I format and remove existing drive

I'm going to replace the 320G drive that came in my Mac Pro with a 500G. I want to format and remove the 320G, then put OSX on the 500G. How would I go about this.

Hi,
Shut down computer, add the 500GB drive into one of the open hard drive slots, reboot, there might be a window that pops up indicating if you want to "intialize" the new drive. Click Intialize (If nothing comes up launch disk utility located in applications--> utilities--> disk utility).
In the disk utility window, locate the new drive on the left side column. Click on the drive, and in the middle portion of the window there will be 5 tabs: First Aid, Erase, Partition, RAID, Restore. Click Partition.
Under Volume Scheme, choose how many partitions you want. I your case you probably just want 1 partition, so choose 1 partition.
Name the volume under volume information, choose Mac OS Extended (Journaled) for format.
Looking at the buttons below press "Options". Your mac is intel make sure "GUID Partition Table" is clicked.
Press Partition. Wait a couple seconds for it to partition. Once done, it will show up on the desktop. It's ready to go.
Next step to decide is if you want to fresh install the OS onto this new 500GB drive OR simply clone over your 320GB. This is up to you. If you don't want to reinstall everything just use a cloning program such as "Superduper!" or "Carbon Copy Cloner".
If you want to fresh install the OS, insert the OS disk that came with the mac pro. Restart. When restarting hold down the letter "c" on the keyboard to boot from disk. Follow the instructions, and choose "erase and install". If you are going to fresh install, BE SURE TO CHOOSE THE BLANK 500GB, NOT YOUR CURRENT 320GB. To fresh install, the choice is "Erase and Install" I think. Install and your 500GB drive should be ready to go, with a brand new OS installed.
Whether you choose to clone over your system, or fresh install, if possible always run "Disk Warrior" or "Tech Tools" maintenance disks if you have them either after the OS install or after installing all your applications.
Have fun!
noice_T

My 2009 MacBook Pro keeps restarting even after I wiped the hard drive and reinstalled OSX.

About a month ago, my laptop started to randomly turn off: I would be using either Chrome, Photoshop (the free CS2 version available from Adobe's website) or Powerpoint, and the screen would go blank. I would then have to hold the power button for a while until the little light at the front of the computer would flicker and it would restart. I brought it to the Mac Store where they tested it and said it looked fine. They suggested I erase my hard drive and reinstall OSX as a precaution.
Fast forward a month, I have been very busy with work and hadn't been able to fix this problem. It wasn't that bad, only once every couple of days, sometimes more, sometimes less, I could work despite this problem.
Then, I installed OSX Mavericks. The installation started in the morning, but, like an idiot, I paused it to go to work. Later on, I completed the installation, it looked fine, but then all day long my laptop would suddenly restart and go to a grey screen that said in multiple languages "Your laptop restarted because of a problem, press any button to continue the restart." A computer technician friend of mine checked it out and said it was probably due to the badly installed OSX and suggested that I erase my hard drive and reinstall OSX.
I backed up all my files, erased the hard drive and reinstalled OSX. Everything looked fine.
Then it happened again.
Any ideas of why this is happening?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login 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.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

Hard drive crashed. How do I get OSX on my new drive?

I think my hard drive crashed, oh my. First, let me say that all my data is backed-up on a cloud drive or on my network drive. So, I am good there. The computer is now completely inoperable, can't start up, not even in safe mode. Just goes to Apple grey screen and then shuts down, that Issa far as I can get. Does not even play the start-up chime anymore.
Question I have is this: I did not make a bootable start-up drive (dumb), so when I get a new drive to replace this, how will I get the OS on it to start- up and get the new drive ready?

If you don't get a startup chime then you may have a worse problem. Just be prepared.
What year is your MBP? From 2011 onward you would use Internet Recovery. Earlier you would need to install the original software that came with the computer on software restore DVDs.
Internet Recovery
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet
            if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.
DVD Installation:
Clean Install of Snow Leopard
Be sure to make a backup first because the following procedure will erase
the drive and everything on it.
     1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
         with your computer. Insert the disc into the optical drive and restart the computer.
         After the chime press and hold down the "C" key. Release the key when you see
         a small spinning gear appear below the dark gray Apple logo.
     2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
         size.) Click on the Partition tab in the DU main window. Set the number of
         partitions to one (1) from the Partitions drop down menu, click on Options button
         and select GUID, click on OK, then set the format type to MacOS Extended
         (Journaled, if supported), then click on the Apply button.
     3. When the formatting has completed quit DU and return to the installer. Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X. You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Download and install Mac OS X 10.6.8 Update Combo v1.1.

How do i uninstall new version of Elements and reinstall on external hard drive. My PC is crashing

How do i uninstall new software for Elements and be able to reinstall on external hard drive .Message on Wizard say I can not reinstall once I uninsall. I need to remove it from my PC. There is not enough disc space and it is crashing.

It's really not clear what you are trying to say. You need to explain better and provide more info.
Mylenium

I bought a Mac PowerBook in 2008. It came with InDesign CS3. I did not use it. My computer was stolen in 2014. I had backed up the hard drive. I reinstalled on my new Mac laptop. I want to use the CS3 now. It will not download or install. What do I do?

I bought a Mac PowerBook in 2008. It came with InDesign CS3. I did not use it. My computer was stolen in 2014. I had backed up the hard drive. I reinstalled on my new Mac laptop. I want to use the CS3 now. It will not download or install. What do I do?

From where are you trying to download it?

Not able to reinstall OSX Snow Leopard - broken hard drive?

Hi!
So I have the following problem, that I would like to have some help with.
Until recently my iMac (early 2008, 3.06 GHz Core 2 Duo, 2 gb ram, 24") has been running with OSX and Windows 7 in bootcamp. All of the sudden, I was not able to boot OSX; when trying to do this the computer stalls on a grey screen with a loading bar in the bottom (like this http://reviews.cnet.com/8301-13727_7-10387698-263.html). I decided to reinstall OSX, but it was not possible. Everytime I tried to select the hard drive during installation the computer instantly goes into grey screen.
Being pretty stuck here, I then continued to formatting and reinstalling Windows 7. I have now been running RAM test and there are not visible problems. Also I am still not able to reinstall OSX even after a format. It leads me to think that the hard drive may be close to dying.
Does anyone have some similar experiences? Opinions?
Best regards, Mikkel

So, I decided to run some diagnostics:
I am not sure that I decipher the numbers correctly, but the four pre-failures on top seems threatening. Am I right?

Reinstalling OSX to new drive

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