Hot to install mac os x on imac 20

helooo

As far as I am aware there is no such thing as an iMac 20.
Perhaps you have an iMac 20 inch and if so you are probably on the wrong forum. I will include my standard message about forums at the end of this post.
With older OSs you can insert the install DVD, erase the disk (destroys all your data) and install the OS.
Many newer OSs have a recovery partition and you can read about this on the correct forum.
Whilst it may not be your fault I am afraid it appears that your post is on a forum which is not the best for your OS. It will save the time of the unpaid volunteers here, and may resolve your issue faster, if you could examine the list below and see if there is a more appropriate forum to which you could direct your question.
OS X 10.9 Mavericks
OS X 10.8 Mountain Lion
OS X 10.7 Lion
OS X 10.6 Snow Leopard
OS X 10.5 Leopard
OS X 10.4 Tiger
OS X 10.3 and earlier
OS 9, OS 8 & System 7
OS X Technologies
OS X Server
iPad
iPhone
iPod
Other

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Installed Mac OS X v10.7 Lion yesterday, computer is running very slowly as is my WiFi. Any suggestions?

Since installing Mac OS Lion, my iMac is running slowly as is my WiFi, any suggestions?

Repair the Hard Drive and Permissions
Boot from your Lion Recovery HD. 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. Restart.
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.
To boot from the Recovery HD restart the computer. After the chime hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button. Or restart the computer and after the chime press and hold down the COMMAND and R keys.

HT3986 I've had MS Office:mac 2011 on my imac for around 18 months now. Outlook has just disappeared and when I find the file and open it it tells me that there is a problem and I may need to re-install it. I've just done this using the installation dis

I've had MS Office:mac 2011 on my imac for around 18 months now. Outlook has just disappeared and when I find the file and open it it tells me that there is a problem and I may need to re-install it. I've just done this using the installation disc which, then said the installation had been successful.
Outlook is still not working. Can anyone please advise me on what to do next.

Remove MS Office 2011 completely (here are instructions) and reinstall it.
It's not a simple or fast process but it is important to follow all of the steps in order to get all the files that Office scatters around. This will not affect your data files, only MS Office and its preferences.

How do I install Netgear XE102 on my iMac? It will not install off of the cd provided it appears to be only for Windows based computers. Checked Netgear website and could not find a setup.exe file for Mac.

Unable to install Netgear XE102 on my iMac. Checked Netgear website and could not find a setup.exe file for Mac.

That means either no software needs to be installed on a Mac or the product is incompatible with Macs. Contact NetGear tech support for help.

Can I install Mac OS 10.4.7 CD's meant for an imac intel chip (Jan 2007)??

Can I install Mac OS 10.4.7 CD's that came from an imac intel chip (Jan 2007) ONTO an ibook power pc G3? The ibook only has a CD drive and I believe the OS installs are CD's not DVD's as there are 2 of them. The ibook currently is running OS 10.3.9 with 23 GB on the HD at the moment. I may be able to free up some space though by dumping Microsoft Office. I know for sure I had 10.4.7 on there before but I got a used HD and there is only 10.3.9 on it. Sigh.

Nope, sorry wont work, those are Machine & Architecture specific Install Discs.
See Tom's, (Texas Mac Man), great info on where/how to find/get Tiger...
http://discussions.apple.com/thread.jspa?messageID=9755670&#9755670

I have a new mac mini I5 - I cannot find and copy Maverick onto a flash so that I can install on the other 7 iMacs - don't want to download from App store to each machine

I have a new mac mini I5 - I cannot find and copy Maverick onto a flash so that I can install on the other 7 iMacs - don't want to download from App store to each machine - files too big
Please assist

You need to download it on one of the iMacs via App store but not install since after it installs the installation download gets deleted.
After it is downloaded you can copy to a USB device. You can also make a bootable USB install device by:
downloading and using DiskMaker X

Need Urgent Help Cannot install Mac OSX 10.6 on 20" intel imac

I recently purchased an intel imac an intel mac pro from an auction. When i purchased the macs i was told that no operating systems will installed and i would need to purchase and install mac osx10.
I purchased the mac osx10.4.6 family pack from the apple store online.
i put the new disc in the mac and restarted holding down c.
for some reason nothing happens and i get folder with a question mark.
I have tried this several times but nothing seems to work.
I am a complete novice with macs and migrsting from pc.
thanks

You cannot buy a retail version of Tiger that will install on any Intel Macs. You must have the original installer discs that came with the computer. You should not have purchased the computers without them nor should they have been sold to you without them.
The only option you have is to call AppleCare or go to a local Apple store and see if you can purchase the discs needed for each computer (there are different versions for each model.)
Why reward points?(Quoted from Discussions Terms of Use.)
The reward system helps to increase community participation. When a community member gives you (or another member) a reward for providing helpful advice or a solution to their question, your accumulated points will increase your status level within the community.
Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

Whenever i try to install an app frorm my iMac to my iPod it tells me i need to authorise my mac even though i already have any help anyone?

Whenever i try to install an app frorm my iMac to my iPod it tells me i need to authorise my mac even though i already have any help anyone?

Howdy there 15itechnic,
It sounds like you are getting a prompt when trying to use iTunes to sync an app to your iPod that you need to authorize your computer but it already is. I would next verify that the app in question was purchased with the same Apple ID as the one that you have iTunes authorized. The following article will help you find the Account Name. Open iTunes and go to the Apps section under Library in the Sidebar.
Recovering a forgotten iTunes Store account name
http://support.apple.com/kb/ht1920
Open iTunes
Highlight one of the items you have purchased (You can find your purchases in your Purchases playlist).
Choose File > Get Info.
Click the Summary tab.
The Account Name area will list the account used to purchase the item. Unless you have changed accounts, this is your iTunes Store account name.
Thank you for using Apple Support Communities.
Cheers,
Sterling

TS3742 I have an iMac 24" system. I just recently installed MAC OS X 10.7.4 (Lion) on my system. Since doing so, my system consistently hangs. Particularly when using iMovie and iPhoto.

I have an iMac 24" system. I just recently installed MAC OS X 10.7.4 (Lion) on my system. Since doing so, my system consistently hangs. Particularly when using iMovie and iPhoto. I have to power off my system to get it running again. Any suggestions on what I can do to address this situation.

I would first reset the SMC:
Shut down and unplug the Mac.
Keep the Mac unplugged for at least fifteen seconds.
Plug the Mac back in and do not turn it back on for at least five seconds.
Press the power button to turn the Mac back on.
Then I would reset the PRAM by rebooting the iMac while simultaneously holding the Command-Option-P-R keys until the machine restarts a second time.
Let us know if these procedures don't solve the problems.
Hope this helps

Last week I've install Mac OS X Mountain Lion and then after the installation finish my IMAC start up in verbose mode. How can I turn off this mode and start my IMAC normally. I've try to key in the code "sudo nvram boot-args=" in terminal also.

Last week I've install Mac OS X Mountain Lion and then after the installation finish my IMAC start up in verbose mode. How can I turn off this mode and start my IMAC normally. I've try to key in the code "sudo nvram boot-args=" in terminal also.
Thank you for all of your answer.

I've seen it mentioned on here that a PRAM reset may solve it:
Reset PRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P and R.
You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Installing Mac OS X 10.4.7 DVD disk to a 2nd Hand G5 imac?

Hi trying to install my version of 10.4.7 which works on my ibook G4. But I recently bought a 2nd Hand G5 iMac 1.83 Ghz Intel duo. I loaded the disk and it does'nt seem to want to work? It's saying the destination is not suitable? Would I need to buy new Mac OX for the G5 iMac? Any thing have I missed? (holding C btton once restarted!
iBOOK g4 Mac OS X (10.4.8) 550 Mhz PowerPC G4. 256 MB SDRAM.

You are trying to install the Tiger install package that shipped with your iBook with a PPC processor (or a Tiger retail install package) on a G5 iMac Intel Duo with an Intel processor which is impossible. Even if both Macs have a PPC processor it would not be possible with the install package that shipped with your iBook.
You purchased a 2nd hand iMac G5 with Intel processor without the Tiger install package that shipped with this Mac when new and it doesn't currently have Tiger installed? You really need the install package that shipped with this Mac when new for a number of good reasons.

Installing mac os 10.2 Jaguar on my iMac G3 from 10.1 Puma

I got this old iMac G3 slot loading from a friend that has 64Mb of RAM. It had os 9 on it and I installed mac os 10.1 Puma on it and it installed fine. Then I popped in the mac os 10.2 Jaguar in and restarted the mac and installer opened and started to install mac os 10.2 Jaguar but it was installing very slow. It tool forever for the language selector to select and continue then after that the introduction to the installer begin and is taking forever. The continue button is not available to click and the reading packages little symbol is spinning.

Chrisapoo23, welcome to Apple Discussions.
You have several problems. You state the Mac has 64MB RAM. Jaguar requires a minimum of 128MB RAM. The iMac requires a firmware update before installing OS X. You need to check if your Mac requires a firmware (Boot ROM version in System Profiler) update. Mac OS X: Available firmware updates
http://docs.info.apple.com/article.html?artnum=86117 If an update is required, the update must be installed (using OS 9) BEFORE you install OS X.
Also, what size hard drive is installed? You may not have sufficient space for all you are trying to install.
 Cheers, Tom

IMac won't install MAC OS X

Hey,
I'm having trouble installing MAC OS X. I have been a long time MAC user, having purchased an ibook G4, a macbook, and just recently purchased an iMac G5 from a friend. The obvious problem is that my friend didn't have any MAC OS X cds although he has Mac OS X 10.5.6 installed. The operating system works fine, I just want to reinstall mac os x to get rid of all of his information and start a new.
The problem I'm having is that when I go to install my MAC OS X cds, (I have both a purchased leopard CD, and the mac os x versions that came with the iBook and Macbook) I get the grey/white apple screen, the loading circle AND.....that's it. I have tried pushing C when loading, option and selecting the recognized disk, but nothing happens. Any ideas?

Welcome To  Discussions SYRUM!
"...I have both a purchased leopard CD,..."
Examine the disc very carefully, to be sure it looks exactly like THIS.
Nowhere, should Upgrade, CPU Drop-in DVD, or "This software is part of a hardware bundle purchase - not to be sold seperately." be printed on it.
Nor should it be a burned copy.
Additional info in these links.
Using OS X Install CDs/DVDs On Multiple Macs
What's A Computer Specific Mac OS X Release
Software Update, Upgrade: What's The Difference?
ali b

Mac OS X Server: Can I install that in a Intel iMac running OS X Tiger?

Hello,
I really want to buy the Mac OS X Server Tiger Software, but before that I still have lots of questions, so here is just one question:
- How can I install that on my iMac Intel running Tiger OS X? Do I need to make a pertition of my MBR Hard Drive in order to be able to fully run Mac OS X Server on my 2Ghz Intel Mac?
Thank you, hope you got a solution for my problem.

> How can I install that on my iMac Intel running Tiger OS X
Umm, you mean other than inserting the DVD, double-clicking the 'Install Mac OS X Server' app and following the on-screen instructions?
>Do I need to make a pertition of my MBR Hard Drive in order to be able to fully run Mac OS X Server on my 2Ghz Intel Mac?
If you want to, sure. There's no need to do this, though. The only reason to create a separate partition is if you wanted to dual-boot your machine so that you could switch between Mac OS X and Mac OS X Server, but that's entirely optional.

I want to install Win7 on my new iMac using bootcamp. I got a USB drive for the win7 install-disc, but I don't own a cd for the Mac OS (since it was preinstalled when I got it). I read somewhere that I need a mac OS disc as well?

I want to install Win7 on my new iMac using bootcamp. I got a USB drive for the win7 install-disc, but I don't own a cd for the Mac OS (since it was preinstalled when I got it). I read somewhere that I need a mac OS disc as well to complete the bootcamp installation of Win7 ?
I need some recomendations plz.

Hello,
you don't need OS X install-disk, but I strongly recomend to burn a Win 7 disk. You may have some problems with installing it from a USB Flash :)
Cheers!

Hot to install mac os x on imac 20

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