sierra

I'm trying to upgrade from Sierra 10-12 to Mojave. I get this error message "You may not install to this volume because it has legacy FileVault users". I'm using MacBook Pro (Retina, 15-inch, Mid 2014) Processor 2.8 GHz Intel Cor i7 Memory 16 GB 1600 MHz DDR3 Startup Disk Macintosh HD Graphics...

G'day, The original Superdrive in my MacPro5,1 was getting pretty clunky sounding so I purchased a Pioneer BluRay Superdrive BDR-209DBK to replace it. Initially I just stuck it in the lower optical bay, expecting everything to be rosy, but the Mac wouldn't recognise it. (Was running Mavericks...

Well, for no apparent reason, when I start my iMac and fill in as always my password in the login screen, a new login screen appears. Only this time my user account and password are not accepted. Same happens in Safe Mode, while Apple Diagnostics finds no hardware issue. Please help. Any ideas?

Hello, ask for an advice, please. i have a MacBook Pro (Retina, 15', Mitte 2014) with dual Graphikcards, NVIDIA GeForce GT 750M 2 GB and the less power one: Intel Iris Pro 1536 MB i hae read: macOS Mojave requires a graphics card that supports Apple's graphics framework Metal, but until...

I never gave up on iTunes 10.7 and got it to work on Yosemite, El Capitan, Sierra and High Sierra without losing Mac App Store’s (MAS) functionality. Might also work on Mojave (but I haven’t tested it yet). Here are the steps I follow to revert iTunes 12 to 10.7...

Hey Folks— I know there are a few other 10Gigabit Ethernet threads here, but I have some specific needs and thought maybe it would be better to start a fresh thread for them. Please forgive me if you disagree! :) I would love to be able to deploy some of the new AQC-107 cards and have them...

When I first restart my machine, JPEG previews work fine. After some time (or perhaps it's conflicting with another app? I don't know), it'll stop working and I just get the spinning hatch marks where a thumbnail would normally appear. I "solve" the problem by doing a Restart (which also...

FIXED (see bottom) Really could use some help on this. Have been researching and troubleshooting ten hours so far. Thanks for any help in advance. Going to ANY google site, I get the error message: "Safari can't find the server. Safari can't open the page "https://www.google.com/" because...

Hello,I don't want to bother the sellers and to return my cards, So I would to know if the Titan or Titan X works natively without the web drivers on Sierra or High Sierra like my 780 GTX does. Because I did a try with the 1080 GTX and it was simply a nightmare, so I want to go to a Titan X...

As of recent I have acquired a Mac Pro 2, 1. It can currently run all the way up to OS X 10.11 El Capitan, which is still a good OS, but isn't supported by Apple. Is there any possible way to get a Firmware Upgrade from 2, 1 to the 3, 1? There is fundamentally no difference between the two, as...

Hello! I use an external HDD for film editing, with several partitions, connected to an iMac via USB 3. I upgraded macOS from 10.11.6 to 10.12.6. Since then, whenever I startup the iMac, the HDD does not mount on the desktop, neither is detected by Disk Utility. However, if I turn off the HDD...

Every year at Christmas I switch my screensaver to one called "Snowfall"...it has a red background with giant snowflakes falling. I recently upgraded to Mojave from Sierra and it stopped working. It says "You cannot use Snowfall Screensaver with this version of MacOS. Please contact the vendor...

Hello I could find any info but it's impossible for me to use the Message app on my Mac Pro 4.1 upgraded to 5.1 on latest Sierra. Each time I try to login I get an error "An error has occurred during authentification". It seems apple is blocking the serial of my machine from its server. It...

I use an iMac Core i5 2.9 GHz running MacOS Sierra. Other family members use a MacBook Pro with a Core i5 also running Sierra. We frequently swap files between them using thumb drives. 99.99% of the time, this is a simple and reliable means of temporary transfer and storage. We usually swap...

Hi guys, My system is a late 2012 27" iMac, 16gb RAM with Sierra 10.12.5, and when I start it up, it's already using 7gb of it... Around 6gb App memory and 1gb wired memory. My 1TB HDD is almost empty, I only have OSX and a couple more things, I'm using 15% of the HDD. I use external HDD for...

Hey all – I'm in a bit of a kerfuffle at the moment and was hoping someone might be able to shed some light on this situation? I've searched through various forums but haven't had any luck. Many thanks in advance. Since upgrading to High Sierra last week, my 15" MBP retina early 2013 began...

When I first installed (clean install) Mojave I had this problem that my external HD's kept spinning and didn't go into sleep mode, even though sleep mode is activated through the WD Drive Utilities app. They are WD My Book drives and I have updated their firmware and did a full scan of all...

I recently tried using the Mail app for the first time but have decided I’m not keen on it. I have deleted the account by clicking on the ‘-‘ (minus) symbol under the Accounts setting. My question is; will the system automatically delete all the emails off of my Mac or do I need to do it...

Despite having a Mac for a few years now I have only just started using Mail. My email account is through Hotmail/Outlook and it all synced without any issues yesterday. The only problem I am experiencing is when sending messages the email appears twice in the Sent folder. I have checked with...

Trying to install OSX 10.5.2(Leopard) from original install discs onto a separate partition. However, no luck as it just reboots to main partition. I'm not sure if there's any other way to get the install disc to run. Anyone know how I can get around this large gap in OS versions?