os sierra

For the past few days I’ve been looking for a way to reset my MacBook Air and I thought it would be simple and so I looked it up and I forgot to backup but I didn’t think it mattered so I deleted my old Macintosh HD in disk utility and then tried to reinstall MacOS but it keeps giving the “Could...

Hi all, Thanks in advance. I tried to perform a clean install of MacOS High Sierra on my 2011 iMac 27" (EMC2429) using these instructions* (created a bootable USB); however it's been failing. Specifically, after erasing the "Macintosh HD" it tried to install Sierra from the bootable USB disk...

1) Does time machine delete the oldest versions based on their age, or the number of versions created? 2) If it deletes based on age, how old do the versions have to be to get deleted? 3) If it deletes based on the number of versions created, how many versions do there have to be before the...

I recently updated from El Capitan to Sierra on my '09 Mac Pro classic. I now get notifications from Facebook many multiple times. Seems to be only notifications from Facebook that get duplicated, and many times. Just got one now 22Xs.

I'm having a weird problem on my MacBook Pro. I think it started to happen much more frequently after I installed Sierra. iMessages will not save properly in Library/Messages and a conversation will only show my outgoing messages with no incoming messages for some time (usually a couple of...

Hi! I have 35 iMacs in a school. All have a local administrator account set up. The iMacs are now connected to the domain. They are sitting in an ICT lab, where different domain users will log in and out. I have created a custom dock on the local administrator accounts. I want all domain users...

So I got a 15" macbook pro from mid 2010 that still runs snow leopard, and I am absolutely amazed about how nicely it's been running for all these years. But after approximately 7 years of use, i can definitely tell that it's starting to tire out.. and that it's time for an upgrade. I've been...

I have a 2014 21" iMac. I use hardly any space on the hard drive. So I am getting a bit tired of the 'spinning beach ball' every few seconds. Deleting PLIST files, PRAM resets, file cleaning, memory cleaning, dicking around with WiFi channels and doing a f**king rain dance to the king of the...

I am getting this message when trying to backup data. I searched for this topic in this forum and found a similar entry posted several years ago and the issue was not resolved. This started, I believe, after the recent firmware update to my 3T time capsule. Airport Utility/disks displays...

It seems impossible to scan any document and getting a PDF doc in a correct weight when using Sierra X10.12.2. I use an Epson XP-760 with an iMac 27". Still now, scanning was really simple and efficient, scanning an A4 document at 200 ppp allowed me to get a PDF doc with a reasonable weight...

I was extremely excited to see that Apple has worked to fix the issues with the batter life on the new MacBook Pros, but im seeing no improvement. I downloaded the beta and my MBP is lasting about 4.5 hours. The only things I have done on it in that time are surf the web and listen to music. Now...

Hey everyone, first time posting I have mid 2012 macbook pro with a 500 GB hdd, I need more space and I want to run the os on a ssd to make it faster and smoother. I have a 120 GB ssd and I want to install it in the place of the optical drive (so i will have both hdd and ssd inside the...

Hello, Since upgrading to Sierra, I thought I noticed some severe battery drain. My macbook Pro went from fully charged to 5% in about two hours, while only using Pages. Yesterday, I forgot to bring my charger, and started freaking out while I was still typing because I only had 5% battery...

Hi guys I'm having this little problem where my dock colour won't go back to white. Of course I have tried in settings but nothing. I have also restarted the dock settings through terminal but it didn't help either. Any ideas? macOS Sierra 10.12.1

I feel like this always happens. But every time I update to the most recent OS for the macbook, my macbook is unable to recognize my external HD. So my only choice is to go on my brother's windows computer and transfer all of my files and then reformat the whole HD so that my macbook can read it...

So my text replacement list disappeared on my iPhone 6S after upgrading to the last iOS, but I replaced the list, and it seems to be working. However, the list has been missing/unsynced from my MBA for quite some time. Perhaps since I upgraded to Sierra (when it first came out). Any idea on a...

Not sure where to post this but I've come across something odd on my end in the past week. I can't SSH out to another computer any more, but when I go to another station and do it from there, it does work. I keep getting "port 22 connection refused". I ran nmap localhost and port 22 isn't open...

Hi i just upgraded to os sierra a few days ago and i tried to view an image but my preview.app had an internal error. I already removed "com.apple.Preview.plist" and its still not working. Is there a way to redownload preview? i dont have a time machine backup or any OSX disk btw. Im using Xee...

Has anyone experienced this? I swapped the HD out of my iMac to my Macbook Pro. Both systems were running at a good speed prior. Once I did the swap, I noticed the Macbook was running slower (more color pinwheels, slower speeds trying to complete tasks, etc). Would it be a good thing to do a...

retina macbook 12 2015 base model, downloaded the installer several times can't pass that first step any suggestions?