I responded to the upgrade of iTunes today - to version 11.4. I did this in short succession on a Macbook Pro and iMac, both running Mavericks. On both machines I got an error message immediately after the upgrade as per the attached image...
Info:
MacBook Pro, OS X Mavericks (10.9.4), iTunes upgrade - 11.4
Installing latest version of iTunes (11.4) today led to the following error message: System extension cannot be usedThe system extension “//System/ Library/ Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update.
I'm able to use my USB drive for Time Machine, and that appears to be functioning ok. And what does it mean for the continued safe operation of my MacBook?(Other than the distraction of getting a worrying error message that I take time out to report?)
Info:
MacBook Pro, OS X Mavericks (10.9.4)
I get this every time I boot.
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iMac, Mac OS X (10.7.2)
I have a problem with Norton AntiVirus and have spent hours on-line with three levels of Norton Engineeers. Norton will not perform an idle-scan and loses its license on restart, requiring re-entry of the product key.
When removing Norton files for a re-install an alert pops up System extension cannot be used The system extension "/System/Library/Extensions/SymInternetSecurity.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update. As noted, I have spent many hours on the phone and LiveChat with Norton engineers. The last one has suggested I contact Apple Support for assistance. They will call back on Monday. I am running a 15" MacBook Pro (Early-2011), 2.3 GHz Intel i7, 8 GB 1333 MHz DDR3, OS X Lion 10.7.3, 512 GB Solid State SATA (Crucial)
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MacBook Pro (15-inch Early 2011), Mac OS X (10.7.3), 2.3 GHz Intel i7, 8GB 1333 MHz DDR3
That's the message I got when adding a new printer driver. The reference was system/library/extension/cnqe202-classicnotseize.kext. Or close to that. I think I got that message also when upgrading to 10.6.1. As I recall there was also a note about updating this extension but no info on how to do it. Searching for .kext brought up a long list from last August having to do with crash reports with skype, real player, fire fox and a couple more; but nothing permanent and everything is working fine. Anyone have any thoughts about this? I'm using an iMac, 20".
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MacBook Pro
Snowleopard 10.6.2
2.16 Ghz Intel Core 2 Duo
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iPhone 5s, iOS 8.1.2
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View 1 Replies View RelatedI was having some weird problems with file sharing on my network recently, so I tried changing around some of the permissions on my drives to see if I could resolve it. For some reason I was getting messages saying I didn't have permission to copy files from one computer to another on my network. This seemed to come on randomly as we have been doing file transfers this way for quite some time now. I looked at our file sharing preferences in the System Preference's and added all 4 drives from my Mac Pro in there and made sure that my username had full read and write capabilities. I then tried logging into my Mac Pro from my iMac, just like I've done in the past, and I was still unable to copy the files. So I removed all the folders and turned off file sharing. I then clicked 'Get Info' for my main Macintosh HD and tried changing the permission settings there. I clicked the option to make my username the owner, and then I clicked 'Apply to enclosed items...' and this brought up a progress bar that I let go for about 10 minutes. Then I got a pop-up error message stating "System extension cannot be used" and had an extension path listed underneath, saying it was installed improperly and cannot be used. This happens an endless amount of times. It seems to be giving me this message for every single extension on the computer. If I hold down enter the pop-ups just keep coming with different extensions listed.
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iMac, Mac OS X (10.6.8), imovie
I recently upgraded my system HDD to an SSD with a new install of OSX 10.6.4 and mimicked the settings I had on my previous set up to replicate it. however, when for example I was using iTunes to play music the screen saver would come on and a short time later the system would pause iTunes and goes into Sleep mode.
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I am using Xcode to learn C from a windows-oriented "teach yourself" book. The executable file for the Hello World! program ends in .exe.I imagine that this would run if you double-clicked it in a windows operating system. Is there an equivalent extension for the mac? Or is it always only ran through the terminal program in the Xcode program?
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MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
I have many photos which I saved on disks from my windows computer. I have a mac and now cannot open any of these photos. Many have mix as the extensions.
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MacBook Pro, Mac OS X (10.6.7)
I could do it individually, but I am wondering and hoping there is an easier way. I have a bunch of .docx, .pptx, and .pdf files that need the extension after them.
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Is there a search extension out there that will display the first result from each of your installed search engines as you type? For example, says I type "Adam" and I have google, facebook, IMDB, and Wikipedia as my search engins; the extension would display the first result from google, facebook, etc in the window that pops up as you type. Then if I hit return (without clicking anything that pops up) it would take me to my default search (google).
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iMac, Mac OS X (10.7)
What is a Image Capture Extension, and how do I stop having a pop-up panel showing every-time that I log in?
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Mac Pro, Mac OS X (10.6.4)
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Sample song: [URL]
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