OS X :: System Extension Cannot Be Used?

Aug 31, 2009

I get this every time I boot.

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Intel Mac :: System Extension Cannot Be Used?

Jun 13, 2012

I just installed a number of software updates - iTunes, iPhoto, iMovie, etc. - and this message came up: System extension cannot be used The system extension "/System/Library/Extensions/Iomega/SAM.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update. 

Info:
iMac, Mac OS X (10.7.2)

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ITunes For Mac :: System Extension Cannot Be Used

Sep 9, 2014

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

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MacBook Pro :: Error - System Extension Cannot Be Used

Apr 6, 2012

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) 

Info:
MacBook Pro (15-inch Early 2011), Mac OS X (10.7.3), 2.3 GHz Intel i7, 8GB 1333 MHz DDR3

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ITunes For Mac :: System Extension Cannot Be Used After Installing 11.4

Sep 10, 2014

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)

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OS X :: System Extension Cannot Be Used When Adding Printer Driver

Sep 11, 2009

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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PowerPC :: System Extension Not Installed Properly

Jan 1, 2011

Keep getting "System extension was not installed properly" message at start up after attempting to instal upgrade osx (snow leopard 10.6) right now I have osx 10.5. How do I repair it. Can I use SL 10.6 on a 2006 IMac?

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MacBook Pro :: The System Extension Was Installed Improperly And Cannot Be Used

Jun 13, 2012

every time i have an update this will promt out, but the update still cary one sucesslly. do i need to do some thing with it our still ignore it? or do what it says? How to?  The system extension “/System/Library/Extensions/WkClassicNotSeizeDriver.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update. 

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OS X :: System Extension Error Message CNQL4801_ClassicNotSeize.kext

Nov 24, 2009

I have updated HP drivers twice through Apple's Software Update and each time I get the following error: After dismissing the message I get a confirmation that the update was successful.

MacBook Pro
Snowleopard 10.6.2
2.16 Ghz Intel Core 2 Duo

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Hardware :: 27" LED Display Extension Cables For My System

Sep 25, 2010

As I understand it the MDP from the 5770/5870's have audio support. So does the cable from the new 27" LED display. Do MDP extension cables that can also carry the audio exist (e.g., is Atlona AT13032-2 such a cable)?

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OS X Technologies :: What Does "system Extension Cannot Be Used" Mean

Apr 11, 2012

The system extension /System/Library/Extensions/SyncRAIDExpander.kext was installed improperly and cannot be used. try reinstalling it, or contact the products vendor for an update. what does this mean?

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OS X V10.7 Lion :: "System Extension Cannot Be Used"

Jul 3, 2012

I 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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OS X :: Equivalent Extension For Mac?

Sep 2, 2009

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 :: What Is A *.dmg.cc Extension

May 10, 2012

i downloaded a hash app but it came with a .dmg.cc extension. what is the cc suffix?

Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)

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Mac Pro :: Can Photos With Mix Extension Be Used

Sep 1, 2014

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. 

Info:
MacBook Pro, Mac OS X (10.6.7)

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Applications :: Add Extension To All Files At Once?

Sep 21, 2010

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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MacBook Air :: Is Extension Cord Available?

Mar 12, 2009

I'm sick of the short power cord on my MBA, what are my alternatives. I need a longer cord to reach the power port at school. Sure i can carry a regular extension cord that I can get from walmart, but i want something more aesthetical, Mac looking.

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OS X :: Can't Recognize The Original Extension

Mar 16, 2009

i'm importing video from a vio pov1. its a lipstick camera that you film sporting things with.
i downloaded divx and persia(n)?...but have a few problems. my ultimate goal is to open the file in imovie and edit it. when i open the file in quicktime...i don't get any sound. i can run the file in div x successfuly and see the video and hear the sound but i want to edit the film in imovie and save it to the compuer. persian didn't do much....i still don't know what that even does. there was no evident change after downloading it.

what are my options? also...for some strange reason...even though i imported the original file using iphoto and its saved as an event...i can't bring it into imovie. i'm guesing that this is becuase it can't recognize the original extension?

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Applications :: Looking For Firefox Extension

Apr 5, 2009

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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OS X :: Powerpoint Needs New File Extension, What Is Is?

Nov 1, 2009

I once changed the file extension on a ppt presentation sent to me, and it finally opened. I read about it on here, but cant find the original forum thread and cant remember the extension: pxt or ptx or something similar.

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OS X :: Video File With No Extension?

Dec 20, 2009

I just recently download a video file from Deposit Files & it downloaded without any extension? I am looking for a way to find out its extension & be able to open this video & play it in real player or quicktime as intended. Any time i click on the file the usually gibberish opens up in textedit.

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OS X V10.7 Lion :: Mac Changes Filename Extension?

Apr 25, 2012

For some reason when I go to save a jpg that I've received by email for example, the finder window opens and tells me I need to use the extension jpeg?! But it does offer me this....You can choose to use both, so that your file name ends in “.jpg.jpeg”. Now this is new as I've never had a problem with this before. how I stop it?! 

Info:
iMac, Mac OS X (10.7)

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Mac Pro :: What Is An Image Capture Extension

Jun 22, 2012

What is a Image Capture Extension, and how do I stop having a pop-up panel showing every-time that I log in?

Info:
Mac Pro, Mac OS X (10.6.4)

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Software :: Video Files With .wmv Extension

Sep 30, 2010

I was trying to play some video files with a .wmv extension. I thought I had done this before through Windows Media Player, but this time I got an error message saying something about Real Audio being incompatible with Quick Time. I also tried copying and pasting the video URL into the Windows Media Player window for that purpose, but it still wouldn't play. What is the nature of this problem? I'm uneasy about not being able to play video that is in a widely used format as well as about that quirky Real AUdio/QuickTime message. This is all very confusing!

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OS X :: Music Won't Play - No File Extension

Dec 4, 2010

I have close to a hundred music files that won't play, they have no file ending (.*). They were transferred from a now formatted computer (no way to recover). I have no idea how to get them to work. If I give them an AAC ending RealPlayer will give me the following information but it won't play them. Since it tells me the length of the song it must somehow recognize it.

Sample song: [URL]

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OS X :: Opening Files With No Extension Names

Jun 26, 2008

I just got my new MacbookPro. It is annoying that the Terminal is set as the default opener for those files without an extension name. For example, a file like "car" will be opened by the terminal when I double click it. The terminal will execute each line of the file as a command. Is there any way to set TextEdit.app as the default opener for any file that is not explicitly assigned to an application?

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OS X :: Won't Work With Quicklook Files / No Extension

Oct 10, 2008

I been trying to quicklook files without extension that are plain text, like make files. I had found some really useful website likes this one (URL) but it seems I always need to declare a extension.

So I would like to know if someone knows how to quicklook text files without extension.

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Applications :: DVD Media Extension To IMovie HD?

Jan 18, 2009

I used Ripit to rip a DVD (Dark Knight, for the curious) onto my Mac. Fine. But it rips with this ridiculous '.dvdmedia' extension that isn't compatible with anything but DVD Player. I really wanted to put it into GarageBand or iMovie HD and fiddle around with it to make music videos. I know I could use Get Info to change the extension, but I'm not sure what's really the best format for iMovie HD either. And yes, I know there's a million better rippers for Mac, but Handbrake confuses me, Handbrake Lite and Aimersoft just kind of freeze, and MacTheRipper just sort of scans for the rest of eternity even with VLC in my applications drive?

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Applications :: Which App Can Open .daa Extension Files

Jan 10, 2010

with a file, that have extension ".daa". i don't know what application can open it. By the way, it's a power iso extension.

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OS X :: How To Change Extension Of Multiple Files

Jan 26, 2010

I want to change my extension .JPG to .jpg of multiple file. How to do it.

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