I have a 2010 iMac and I'm considering upgrading to Mavericks. Will I notice any significant decreases in speed? My specs:
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Today my Mac wanted me to upgrade it to Mavericks. I'm hesitating because it is a bit old (Mid 2009 MacBook Pro) and I don't want things to run slow. I'm currently using 10.8.5 and it is OK. I have a Core 2 duo (2.53 GHz) with 4 GB of RAM.  What do you recommend? How was your experience?
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I had an issue with my MacBook Air "Core i5" 1.6 13" (Early 2015) (MacBookAir7,2) and after repeated problems I decided to wipe the computer and give it a clean slate.   I downloaded a copy of Mavericks and Yosemite off the internet and created a bootable external hard drive with an iMac. I've tried both Mavericks and Yosemite but always get the prohibited sign.   I tried cmd + S while booting with the hard drive and it said "This version of Mac OS X is not supported on this platform" for both versions of OS X. The funny thing is I tried the bootable hard drive with the old iMac I have in the house and it booted into the installer just fine.   What can I do to fix this issue?
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We have an older iMac (Model A1311, Mid 2011). It has been running Yosemite. We have run into some of the WIFI issues associated with Yosemite.   Is it possible to upgrade to El Capitan but not Sierra?   El Cap has been out longer. Its my wife's computer, its older, and I really don't want to be debugging Sierra until a few  more "dot" releases come out.
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This question serves to share and collect the enhancements that make a large difference to how you use your Mac.   Please post one feature per answer. Please also check to see if your answer has already been posted - duplicate answers will be deleted. To search answers for this question use  (directly from the question page) in addition to your search terms in the search box in the upper right hand corner of this page.  The best answers will not only list a feature, but provide details on how to configure that feature, and provide an image of how to use the feature to be more efficient or effective with Mavericks.
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I plan to buy a MacBook Pro. But my work relies heavily on 32 bit apps for music production, which are not supported in Catalina. Can I downgrade to macOS Mojave if I buy the new MacBook Pro?
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I understand the move past Snow Leopard meant losing Rosetta, and compatibility with any PPC apps.   Since there are some apps that can't be replaced (for example, old years of TurboTax that I might need to reference) I have a drive to boot Snow Leopard, and one for Yosemite. I was considering the jump to El Capitan, when I saw the question  which got me wondering the question -     Before installing a next generation OS, is there any way to find, in   advance, which apps I have that would be orphaned by the move?   Edit, the answer below from Jean Valjean was what I needed. One app concerning me appeared as follows:    It might be tedious to search many apps, but at least this gives me a chance to view the top ones that will cause me grief.
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I'm new to the world of Apple, I bought a new Macbook Pro, mid-2020, Intel i7, 16GB RAM. I'm a developer, I run apps like VS Code, Sublime Text, Slack, Chrome (Multiple Windows), I play videos/songs in the background. I have been keeping a track of the energy consumption on my Mac, and it only runs for 4 hours. I have reset my SMC after I upgraded to Big Sur. Is 4 hours normal? or should I go to the service center? Update on 3 Feb 2021: I submitted my Mac to the Apple service center they said they conducted a few tests and the conclusion was that the battery is fine (I don't know what type of test they did). So I guess I'll be using it on AC Update on 12 Feb 2021: Took it to the service center, they didn't find any issues so I started using Safari for work and my battery has improved by 1 hour on Average.
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Not a problem, but have been seeing questions recently of people not being offered upgrade from 18.04 to 20.04.  I thought these upgrades were offered back in June.  I upgraded to 20.04 from 19.10 and this was offered back in May.  Imagine that different versions paths have different schedules, but google does not help explaining(that I found).  Does someone know the schedules?
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Short summary: 14.04 is much slower than 12.04 even with more RAM assigned.  I'm using latest VirtualBox 4.3.10 on Mavericks 10.9.2. How can I make it faster?
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I want to update from Mac OS X 10.6.8 to the newest version which is macOS Sierra. My Mac should be able to run this version of macOS. If I try to download the update on the App Store it fails because I need Mac OS X 10.7 at least.  What can I do to upgrade my Mac?
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As per Apple support document, :     1. Check compatibility      You can upgrade to macOS Mojave from OS X Mountain Lion or later on   any of the following Mac models. Your Mac also needs at least 2GB of   memory and 12.5GB of available storage space, or up to 18.5GB of   storage space when upgrading from OS X Yosemite or earlier.         MacBook introduced in early 2015 or later   MacBook Air introduced in mid 2012 or later   MacBook Pro introduced in mid 2012 or later   Mac mini introduced in late 2012 or later   iMac introduced in late 2012 or later   iMac Pro (all models)   Mac Pro introduced in late 2013, plus mid-2010 or mid-2012 models with a recommended Metal-capable graphics card.      I am currently running macOS High Sierra on my Early 2011 MacBook Pro.  What does Apple's requirements mean for my ability to install Mojave? Is it possible or worthwhile to do so?
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The box says I can add up to 3 GB (for a total of 4GB), but is this restriction hardware based, or because of the operating system?  If I upgrade to OS X 10.6 or higher, can I increase the RAM to 8 GB like the newer models?
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I am trying to download Xcode from the App Store, but it says that I have to have a newer version of macOS. But I don't have enough space on my computer to upgrade. Its like 8 gigs or something like that and if I only could download Xcode that was compatible with macOS Sierra that would be nice.
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I am asking myself which constellation is better: should I stock up my RAM up to 16GB (from 8GB), or should I buy a SSD with 128GB??   I really dont know :/  Cheers!  BTW: My macbook supports 16GB RAM, i already checked this ;)
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Has anyone had the chance to test the compatibility of MacTeX on the new M1 Macs (Mac Mini, Macbook Air and Macbook Pro)? What is the performance like?
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Last night (Because my hard drive was almost full) I freed about 4GB. Then I came back to my Macbook about 3hrs later (I left it idle) and Its was full again.  Is something is eating my mac?  If I go to /About This Mac/Info/Storage then it says I have 90GB of "Other"  This worries me and I thought it was just me imagining things, but I think there IS something wrong with my mac as I believe that it was also happening when i had Mountain-Lion before Mavericks.  Edit: Activity Monitor  launchD 1.28GB Written  Kernel_task 764MB Written  mds 475MB Read   Now this a list of the user column (note I am the only user on this Mac):   root _mdnsresponder _spotlight _softwareupdate _locationd _networkd myname
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I have a mid-2011 iMac which came with 4GB RAM (2x2GB). I just bought 8 GB (2x4GB) and added it to get a total of 12GB. The current configuration is as follows:    Given that the RAM is a different size, do I have the optimal locations for the different RAM chips? At the moment what I did was to simply add the 2 new sticks of RAM in the two empty slots.