Cannot install Mountain Lion on my hard disc, as I keep getting the message" 'This disk is used for Time Machine backups'. Which it isn't - I don't use Time Machine

Check to see if you have a folder named "Backups.backupdb" at the root level of your hard disk. That can cause this error message.

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Attempting to install Mountain Lion on iMac running OS 10.6.8 produces the message that ML cnnot be installed on the int. HD because it is used by Time Machine. It is the int. startup drive. What now?

Attempting to install Mountain Lion on iMac running OS 10.6.8 produces the message that ML cannot be installed on the int. HD because it is used by Time Machine. Time Machine is off and the only drive is the int. startup drive. What now?

You may have a folder named Backups.backupdb at the root level of your startup disk. You cannot find it with Spotlight. Just navigate to your startup disk (usually named "Macintosh HD") and drag Backups.backupdb to the Trash.
Is your startup disk partitioned? If so this may be applicable:
OS X Lion: Installer reports "This disk cannot be used to start up your computer"

Why do I get the message "This disk cannot be used to start your computer" w/ upgrade to Mountain Lion from 10.6.8

I have a MacBok pro later than 2007. running 10.6.8 . Downloaded Mountain Lion from app store. When I get to the install page I get the message "This disk cannot be used to start your computer." What is the problem and what can be done?
Thanks,

I appreciate the prompt reply. I saw that on the support community and it isn't giving me a solution.
The disk where the volume I need to upgrade is 250.06 GB Hitachi, the partition window (current) does not have a blue marker for the used data space, so there is no way to resize it.
If it's helpful, System profiler reads:
NVidia MCP89 AHCI:
Vendor:          NVidia
Product:          MCP89 AHCI
Link Speed:          3 Gigabit
Negotiated Link Speed:          1.5 Gigabit
Description:          AHCI Version 1.30 Supported
Hitachi HTS545025B9SA02:
Capacity:          250.06 GB (250,059,350,016 bytes)
Model:          Hitachi HTS545025B9SA02
Revision:          PB2AC60W
Serial Number:          100814PBL200CSJA72PN
Native Command Queuing:          Yes
Queue Depth:          32
Removable Media:          No
Detachable Drive:          No
BSD Name:          disk0
Rotational Rate:          5400
Medium Type:          Rotational
Partition Map Type:          GPT (GUID Partition Table)
S.M.A.R.T. status:          Verified
Volumes:
Capacity:          209.7 MB (209,715,200 bytes)
Writable:          Yes
BSD Name:          disk0s1
Capacity:          249.72 GB (249,715,376,128 bytes)
Writable:          Yes
BSD Name:          disk0s2
Macintosh HD:
Capacity:          249.71 GB (249,714,352,128 bytes)
Available:          100.41 GB (100,405,456,896 bytes)
Writable:          Yes
File System:          Journaled HFS+
BSD Name:          disk0s2s1
Mount Point:          /
Boot OSX:
Capacity:          134.2 MB (134,217,728 bytes)
Writable:          Yes
BSD Name:          disk0s3

I know my back up exists I can see it on disk utility but migration and disc utility wont work to restore my back up on my new hard drive it shows up with the message "this disk is already in use" i am so done. someone pls help me

I know my back up exists I can see it on disk utility but migration and disc utility wont work to restore my back up on my new hard drive it shows up with the message "this disk is already in use" i am so done. someone pls help me

Otherwise software may be attempted to access the drive. The the computer up in Safe Mode by holding shift when you turn it on. Also be sure to power off and on the hard drive itself.

I erased my HD. Now I can't instal mountain lion from my bootable flash drive, and keep getting "installation error. Try again."

I bought mountain lion, made a bootable flash drive.
I booted from it and it went to upgrading right away!
So I stopped it and went to my former recovery partition I erased my HD because I wanted a clean start.
Now I can't instal mountain lion from the bootable flash drive, and keep getting "installation error. Try again."
and there is no 4 choices window.
I don't know what to do.

How did you create the USB install thumb drive? If it was with Disk Utility I have run into this problem and have since used THIS program to make the USB install drive.
As to your problem you only have one option and that is to Reinstall the Original OS X version that came on your computer or if you still have the Lion Recovery Partition use that to reinstall Lion. Or if you system came with Lion and you have No Lion Recovery HD Partition you can boot the system from over the internet and Reinstall Lion.
At startup hold down the Command+Option+r keys until you saa a spinning Globe in the center of the screen. Once that loads Repartition the drive as One partition and then reinstall Lion.

How do I install itunes on a windows 8 computer. I keep getting the message that the app cannot run on my computer.

I cannot install itunes on my windows 8 computer. I get the message that the app cannot run on my computer.

Hi mlheidt,
If you are having trouble installing iTunes on your Windows 8 computer you may want to use the following article to help you get it up and running -
Issues installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thanks for using Apple Support Communities.
Best,
Brett L

Cant install or uninstall Adobe Air. Keep getting error message "This application requires a version of Adobe AIR which cannot be found"

I am running Windows 7 and use Adobe AIR for Flixster. When I tried to open Flixster I recieved an error message saying i needed to install Adobe AIR. I looked and saw that according to control panel, Adobe AIR is installed. I attempted to uninstall but get this EXACT message:
"This application requires a version of Adobe AIR which cannot be found. Please download the latest version of the runtime from http://www.adobe.com/go/getair, or contact the application author for an updated version."
I have tried going to the mentioned website but i get an error message saying installation failed and may need administrative privilages but I AM the administrator!
I then tried multiple solutions on the forums including the command prompt uninstall and still no luck. contacted customer support who told me i can only receive assistance through these forums.
Very frustrating. Please Help.

I have the same issue with a customer of ours:
Try to uninstall AIR – same message. (When I reinstall, the install says it’s successful.) I try to run our app, same message. I downloaded another AIR app, same message – so it’s not our app it’s AIR. We logged in as Administrator, same message. It’s a Windows7 machine. I did a system restore to 2 days ago and started over and still the same issues. I tried running the Windows Fixit to uninstall https://support.microsoft.com/en-us/mats/program_install_and_uninstall – didn’t work.

I keep getting the message "This search engine isn't supported by Firefox and can't be installed" whenever I try to install ANY search plugin on the Mozilla Add-ons website. Why?

No matter which search plugin I choose to install from the list of FireFox search plugins on the Mozilla Add-ons website, I get the same error message - "This search engine isn't supported by FireFox and can't be installed". I tried deleting the 3 files in my profile identified in the article on troubleshooting plugins, but it didn't help. I am running Firefox with administrator privileges, but that doesn't help. The problem appears to be only with search plugins. I can install other extensions that are not search plugins from the Mozilla Add-ons site, but not search plugins. I tried restarting FireFox and rebooting the computer severaltimes, but I keep getting the same error message when I try to install a search plugin.

If you are creating your own search plugins, be aware that you will get this same error if the path to the XML in your action script must be an absolute URL, even if the XML file is in the same location as the page that is pointing to it.
IOW, this will never work:
* window.external.AddSearchProvider('MySearchDefinition.xml');
it must be:
* window.external.AddSearchProvider('http://mysite.example.com/.../MySearchDefinition.xml');

Im not able to burn a disc because I keep getting the message that I don't have a disc burner or software. What can I do?

This isn't working for me and I'm so frustrated that I'm just going to log out and try a different route to fix my problem.

Howdy franfalcon66,
If you are having an issue with burning CDs using iTunes on your Windows computer, I would suggest that you troubleshoot using the steps in this article -
iTunes 12 for Windows: If you have trouble burning a disc
Thanks for using Apple Support Communities.
Best,
Brett L

I cannot open Lightroom. I keep getting the message: "This action cannot be completed because the other program is busy. Choose "switch to" to activate the program and correct the problem.

I have used my task manager to check to see if another version was open and that did not help. I've signed in and out of CC, that didn't help. The only thing that works is shutting down my computer and restarting. That only lasts for awhile and if I leave it open too long LR doesn't respond and I have to start all over. This just began doing this in the last few days, a few days before that I updated. I am pretty new to LR so any help would be appreciated.
Thank you.

Thank you.
I did the search feature and did locate the .LOCK file (it actually came up with the .LRCAT file) I deleted it but it didn't work. LR will not open and I keep getting the original message I posted, and the only way I can shut down that screen (none of the options will work) is to go into task manager and shut it down.

Downloading mountain lion damaged my hard disc. I took my Mac Pro to apple book store. They are unable to repair it and suggest I purchase a new hard disc for $160. It was a perfectly functioning Mac Pro that got damaged by downloading mountain lion.

Downloading mountain lion damaged my hard disc. I took my Mac Pro to apple store. They are unable to repair it and suggest I purchase a new hard disc for $160. It was a perfectly functioning Mac Pro that got damaged by downloading mountain lion.

Software upgrades do not generally damage hardware; your drive's failure must be co-incidental. On most MBP's, a hard drive is very easily replaced by a user. You might want to check out this site for both hard drives as well as install videos (check which model you have so you can check the correct video):
http://eshop.macsales.com/installvideos/
hard drives:
http://eshop.macsales.com/shop/internal_storage/hard_drives_and_SSD
I just recently upgraded my MBP with an SSD; I purchased an kit with an external enclosure from OWC and cloned the current drive to the new one, installed the new drive and was done in no time.

HT6114 Why can't I install Mavericks on OS X Mountain Lion? I keep getting the message "Cannot install on Macintosh HD"

Why can't i install mavericks on OsX mountain lion? I keep getting the message "Cannot install on Macintosh HD"

You have a Macbook Pro, not a desktop Mac Pro and, since yours is a 2011, it should install.
How much RAM do you have?
And how much empty hard drive space?
Did you get the machine new or did you buy it used with Lion installed?

Cannot install mountain lion. error "This copy of the Install OS X Mountain Lion application is damaged, and can't be used to install OS X."

cannot install mountain lion. error "This copy of the Install OS X Mountain Lion application is damaged, and can't be used to install OS X."

You do meet the hardware requirements. Otherwise you wouldn't have been able to purchase ML.
If you're connected wirelessly to your router, connect with Ethernet.
If you're connecting through a proxy, connect directly.
Boot in safe mode (shift key down at startup) and try again.

Cannot install Mountain Lion as the installer provides message that my target drive is using Time Machine. My target drive is my internal drive and I use an external drive for Time Machine. When I check the Time Macine set up under system prefereces it sh

Cannot install Mountain Lion as installer sys the target drive I have selected is using Time Machine. The target drive I selected is my internal drive. I have an external drive that I use for Time Machine backup. When I go to System Preferences and look at the Time Machine set up it shows my target disk is the external drive. What to do?

Yes, you’ll be able to do that.
(116841)

Unable to install Mountain Lion on my hard drive

I'm trying to upgrade my early 2008 mac pro from Leopard to Mountain Lion using a bootable usb drive but I'm having trouble doing so. When I try installing mountain lion to my hard drive (Mac Drive 1) - The hard drive is greyed out and says 'you can't upgrade this version of OS X'. Yet it looks like I can install mountain lion onto my second hard drive (Mac Drive 2) for some odd reason.
Here's the details for my mac drive 1 which I'm having trouble with (I noticed the volume format is greyed out on disk utility as well).....
And here's the mac drive 2 info which I don't want to install mountain lion onto but looks like I can....
Any help would be much appreciated! Thanks a lot.

I can't answer the bad hard drive question without some guessing. Not that smart.
Do you have a bootable copy of the Mountain Lion installer?
If not download the following. The site says it will work with 10.6:
http://blog.gete.net/lion-diskmaker-us/
That program will allow you to make a bootable DVD or USB with Mountain Lion on it.
You can boot off of it, erase the disk, and then install Mountain Lion.
I think you should be able to reinstall from carbon copy cloner, but I haven't used that program. During the setup it will ask you if you want to import files, but I don't know if it can read carbon copy cloner. I know it can read a Time Machine backup.
A clean install is generally better anyway.
If you get Mountain Lion installed, not everything works like it did in 10.5/10.6. For an example, scrolling is reversed, but you can change it back to the way it is in 10.5/10.6 in System Preferences. After spending some time in System Preferences, my computer acts pretty much the way it always did.

Cannot install Mountain Lion on my hard disc, as I keep getting the message" 'This disk is used for Time Machine backups'. Which it isn't - I don't use Time Machine

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