Everyone seems to love Sierra, but if your experience is like dragging your Mac through a swamp then it's time to do something about it.
How to Use Optimized Storage in macOS By Andrew E. Freedman 19 January 2018 If your hard drive is almost full, it may be time to move some of your files to the cloud. MacOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.' S desktop operating system for Macintosh computers. MacOS High Sierra was announced at the WWDC 2017 on June 5, 2017 and was released on September 25, 2017. The name 'High Sierra' refers to the High Sierra region in California.Like with Snow Leopard, Mountain Lion and El Capitan, the name also alludes to its. Choosing a RAID format in macOS Sierra's Disk Utility. Choose your type, then click Next. The next step is to select your storage devices. Disk Utility will show the drives eligible for the RAID.
Let's fix slow macOS Sierra
In this guide we're going to highlight the most common problems that cause a slow Sierra and the solutions to help you speed up macOS. These solutions can be performed by anyone, but we've ordered them from easiest to hardest.
See how far up the Sierra speed solution ladder you can get.
Step 1 - Eliminate desktop clutter
Difficulty: Easy
Are you someone that puts everything on their desktop? To load all those icons takes up system resources that could be used for better things. Delete what you don't need and group what you do into folders to improve macOS Sierra performance.
To quickly move files into folders:
- Hold Control and click the items you want to group
- Right-click any of the selected files and choose 'New Folder with Selection'
That was easy, wasn't it? Now let's use one of Sierra's space saving features.
Step 2 - Optimize storage
Difficulty: Easy
Another way to free up space is to use one of Sierra's features - the ability to automatically remove files that you don't need. Optimized storage can remove old video files (like that movie you watched months ago) that you can always download from iTunes again. It can also remove old email attachments, which remain stored on the mail server should you need them again.
Clearing out old videos and email attachments can save a lot of space on your Mac and improve overall Sierra performance. Please note that you need to use Apple's Mail app to make use of the email attachment setting. Also, having watched videos suddenly disappear may not be to everyone's taste.
However, if you want to turn these settings on, follow these steps:
How to Use Optimized Storage in macOS By Andrew E. Freedman 19 January 2018 If your hard drive is almost full, it may be time to move some of your files to the cloud. MacOS High Sierra (version 10.13) is the fourteenth major release of macOS, Apple Inc.' S desktop operating system for Macintosh computers. MacOS High Sierra was announced at the WWDC 2017 on June 5, 2017 and was released on September 25, 2017. The name 'High Sierra' refers to the High Sierra region in California.Like with Snow Leopard, Mountain Lion and El Capitan, the name also alludes to its. Choosing a RAID format in macOS Sierra's Disk Utility. Choose your type, then click Next. The next step is to select your storage devices. Disk Utility will show the drives eligible for the RAID.
Let's fix slow macOS Sierra
In this guide we're going to highlight the most common problems that cause a slow Sierra and the solutions to help you speed up macOS. These solutions can be performed by anyone, but we've ordered them from easiest to hardest.
See how far up the Sierra speed solution ladder you can get.
Step 1 - Eliminate desktop clutter
Difficulty: Easy
Are you someone that puts everything on their desktop? To load all those icons takes up system resources that could be used for better things. Delete what you don't need and group what you do into folders to improve macOS Sierra performance.
To quickly move files into folders:
- Hold Control and click the items you want to group
- Right-click any of the selected files and choose 'New Folder with Selection'
That was easy, wasn't it? Now let's use one of Sierra's space saving features.
Step 2 - Optimize storage
Difficulty: Easy
Another way to free up space is to use one of Sierra's features - the ability to automatically remove files that you don't need. Optimized storage can remove old video files (like that movie you watched months ago) that you can always download from iTunes again. It can also remove old email attachments, which remain stored on the mail server should you need them again.
Clearing out old videos and email attachments can save a lot of space on your Mac and improve overall Sierra performance. Please note that you need to use Apple's Mail app to make use of the email attachment setting. Also, having watched videos suddenly disappear may not be to everyone's taste.
However, if you want to turn these settings on, follow these steps:
- Go to About This Mac
- Click on the Storage tab and click on Manage
- Select Optimize
- Check 'Automatically remove watched iTunes movies and TV shows'
- Check 'Download only recent attachments' or to manually decide what gets downloaded, choose 'Don't automatically download attachments'
If you tried these options but prefer the old way you'll need to navigate to iTunes > Preferences > Advanced to uncheck 'Automatically delete watched movies and TV shows.'
If you want Sierra to download all your attachments again go to Mail > Preferences > Accounts > accountName > Account Information. Click on the Download Attachments drop-down menu and select 'All.'
That was a bit more work but still really easy, right? Next up is a way to always speed up a slow Sierra.
Step 3 - Remove background applications
Difficulty: Easy
Does your macOS slow down for no obvious reason? It could be that background apps are hogging your Mac's memory. Most systems have multiple unneeded apps that use system resources. Next time things are slow open Activity Monitor (found in Utilities) and click on the top of the Memory column to order the apps by those that are using the most memory.
If you see an app that is using a good portion of memory (and you're sure you're not using it) select it and click the X at the top left to close the app.
Easy, huh?
The next steps are a little bit more challenging but if you want a Sierra that performs well we recommend you keep going!
Step 4 - Tone down visual effects
Difficulty: Moderate
Apple uses some fancy eye candy to make the Sierra UI (User Interface) a real treat for the eyes. But if Sierra is slow, it feels more like a trick than a treat.
To give Sierra a speed boost you can turn off transparency and motion effects. This is particularly effective if macOS 10.12 is running on older hardware.
To turn off effects in Sierra follow these instructions:
- Navigate to Settings > Accessibility > Display
- Turn on 'Reduce Motion' and 'Reduce Transparency'
You should now experience a snappier Sierra experience. Home key on mac.
In our next step we're going to show you how to take out the trash. Afterall, a clean Sierra is a fast Sierra!
Step 5 - Clean up full Mac hard drive to speed up Sierra
Difficulty: Moderate
Macs use available storage space on hard drives for the smooth running of the OS. When there isn't much free space and your drive is almost full, Sierra will start running slow.
If you've seen the macOS 'Your disk is almost full' notification then you'vedefinitely got a problem that needs fixing. You can click the 'Manage' buttonon the notification, and it will take you to the Optimize Storage features.
A better solution would be to use CleanMyMac X, which has a bunch of tools to clean up your drive. With just a couple clicks you can clear out the junk and free up a ton of storage space for smoother operations.
Here's how to easily remove hard drive junk:
- Launch CleanMyMac X
- Click on the Smart Scan tab
- Let the app analyze your system and when it's finished select Clean
Can you believe how much free space you have now? Your Mac should be running much better after the first 5 steps but if Sierra is still slow it's time to get serious.
These next steps are a bit more difficult but you've made it this far. Don't stop now!
Step 6 - Reset your SMC
Difficulty: Hard
'Reset my what?' SMC stands for System Management Controller, and a reset can solve extreme levels of slowness as well as battery faults and some other hardware faults like problems with your fan.
You should only take this step if everything else has failed to speed up Sierra.
Start by closing all apps (force-quit with Command-Option-Escape if necessary) and shut down your system.
SMC reset instructions for Mac notebook:
- With your Mac shut down, plug in the power cord
- Press the power button while holding down Shift-Control-Option at the same time
- Let go and start your Mac up like normal
SMC reset instructions for Mac desktop:
- Shutdown your Mac and unplug it
- Plug it back in after 5 seconds
- Wait 5 more seconds and then start your Mac as normal
Be honest, you thought that would be much harder didn't you? If you reset your SMC you can definitely reset your PRAM/VRAM. That's the next step!
Step 7 - Reset PRAM/NVRAM
Difficulty: Hard
NVRAM stands for 'non-volatile random-access memory.' 'P' used to stand for Parameter in older Macs where it is called PRAM. Resetting NVRAM is generally recommended when your Mac is behaving strangely. Things like your Mac starting with the wrong disk, screen resolution issues, or wonky battery charge reporting. If you're not sure if you need it, there's no harm in giving it a try just in case.
Follow these instructions to perform a PRAM/NVRAM reset:
- Turn your Mac on from a shutdown state
- When the startup chimes press Command+Option+P+R at the same time
- Hold them until your Mac restarts and you hear the startup sound again
- Let go of the keys
You've done it again. There are only two more steps left. Don't stop now!
Step 8 - Speed Up Sierra's Startup
Difficulty: Hard
If starting up macOS Sierra is taking too long it might be because you have too many startup items. Some apps you'll want starting with Sierra, but others would be better off waiting till you open them.
You could use Step 3 to keep manually closing down these apps but that sounds like a waste of time to us. To stop macOS Sierra startup apps and items, follow these instructions:
- Navigate to System Preferences > Users & Groups > Login Items
- Tick the apps you don't want loading at startup
- Click the '-' button to remove the selected apps from startup
If you want even more control use CleanMyMac to easily deselect startup items or completely remove them from your macOS:
- Launch CleanMyMac
- Click the Optimization tab
- Click on 'Login Items'
- Click enabled/disabled to choose what apps load on startup and what apps don't
- If you never use an app you can also click the check box on the left and then click Remove
Congratulations, you've made it to the top of the ladder. You've taken every step to speed up Sierra. If macOS is still slow, it's probably that your hardware is old. In the final step we'll show you what you can do about it.
Step 9 - Upgrade hardware to SSD
Difficulty: Very Hard
If your Mac doesn't have a SSD (Solid State Drive) then this single change would give you the greatest Sierra performance boost. SSDs are significantly faster than normal mechanical drives and they're also less likely to fail.
Things to consider when shopping for a new SSD:
- What size do you need? Nothing smaller than your current system drive.
- What is your budget? SSDs are more expensive than regular drives.
- Is the drive Mac-friendly? If so it will make it easier to keep your drive's firmware updated and performing smoothly.
With all the different Mac models out there it would be hard to give you a step-by-step instruction. But if you search for your model + 'how to add SSD' you should find the instructions you need.
Or better yet, get a professional to install it for you.
Get macOS Sierra running faster
With the solutions above you should be able to easily transform your macOS Sierra from a slug to a responsive and snappy Mac that is a joy to use.
Just remember that over time, problems that slow down Sierra will build up. Bookmark this page so you can return to these solutions if you have the need.
Alternatively, just regularly run CleanMyMac's range of optimization and cleaning tools to keep macOS Sierra from getting slow.
These might also interest you:
So, your Mac is running out of storage. You try to figure out what's taking up your disk space by clicking the Apple logo on the top-left of the screen, selecting About This Mac, and hitting the Storage tab.
To your surprise, you see a yellow bar representing 'System' that seems to occupy way more space than you think it should. In the example above, it only shows 207 GB, but take a look at this Apple discussion — some Mac users report that System Storage takes an astonishing 250 GB.
Worse yet, you have no idea what's included in 'System' storage, because clicking the 'Manage' button brings you to this System Information window… and the 'System' row is greyed out.
Why does my Mac system require so much space?
What does it contain?
Is it safe to remove some of those system files?
How do I regain more storage space?
Questions like these may easily get to your head. Although my Mac now has a good amount of disk space available, I'm always wary of files that are taking up more space than they should.
Mac Os High Sierra Features
I have no idea why 'System' is greyed out while 'Documents,' 'System Junk,' 'Trash,' etc. allow you to review the files based on size and type. My hunch is that Apple does this on purpose to prevent users from deleting system files that could lead to serious issues.
What Files Are Included in System Storage on Mac?
During my research, I found many people report that Apple counts iTunes backup files and app caches (e.g. Adobe video cache files) in the System category.
Since it's greyed out and we are unable to click on that category for deeper analysis, we'll have to use a third-party app to assist.
CleanMyMac X is perfect for this kind of analysis. Since I tested the app in our best Mac cleaner review, it immediately came to my head when I saw 'System' was greyed out in Storage. Note that CleanMyMac isn't freeware, but the new 'Space Lens' feature is free to use and it allows you to scan your Macintosh HD, and then show you an in-depth overview of what's taking up disk space on your Mac.
Step 1:Download CleanMyMac and install the app on your Mac. Open it, under 'Space Lens' module, first click the yellow 'Grant Access' button to allow the app to access your Mac files and then select 'Scan' to get started.
Step 2: Soon it'll show you a folder/file tree and you can hover your cursor over each block (i.e. a folder). There you can find more details. In this case, I clicked 'System' folder to continue.
Mac Os High Sierra 10.13.6
Step 3: The file breakdown below indicates that some Library and iOS Support files are the culprits.
The interesting part is that the System file size shown in CleanMyMac is much smaller than the size shown in System Information. This puzzles me and makes me believe that Apple definitely has counted some other files (not real system files) in the System category.
Mac Os High Sierra Storage Space
What are they? I have no clue, honestly. But as reported by other Mac users who experienced the same issue, they said Apple also considers app caches and iTunes backup files as System files.
Out of curiosity, I ran CleanMyMac again for a quick scan. That app found 13.92 GB in iTunes Junk. Further review revealed that the junk files are old iOS device backups, software updates, broken downloads, etc.
But even after adding this amount to the original system files returned by CleanMyMac X, the total size is still a bit less than what's returned in System Information.
If cleaning the System Storage is still not enough to bring your Mac available disk space to a normal level (i.e. 20% or more), see below.
What Else Can I Do to Reclaim More Disk Space?
There are tons of ways out there. Here are a few of my favorites that should help you get back a decent amount of space quickly.
1. Sort all files by size and delete old large files.
Open Finder, go to Recents and look at the Size column. Click on it to sort all recent files by file size (from large to small). You'll have a clear overview of what items are eating up a large amount of space, e.g. From 1 GB to 10 GB, and from 100 MB to 1 GB.
On my MacBook Pro, I found a few large videos that could be transferred to an external drive.
Note: If the Size column doesn't show up, click on the Settings icon and select Arrange By > Size.
2. Remove duplicate files.
Don't forget those duplicates and similar files! They can stack up without you being aware of it. Finding them is sometimes time-consuming. That's what Gemini 2 is designed for. Simply select a few frequently used folders (e.g. Documents, Downloads, etc.) in the main zone of Gemini.
It then scans them and returns all the duplicate files that might be worth removing. Of course, it's always a good practice to review them before doing so. You can also read more from our detailed Gemini review here.
Wrapping It Up
Ever since Apple introduced the Optimized Storage feature, Mac users got the option of saving space by storing content in the cloud. Apple also has several new tools that make it easy to find and remove unneeded files.
That bar under the Storage tab is beautiful. It does allow you to get a quick overview of what's taking up the most space on our hard drive. However, it still lacks insights into the 'System' category as it's greyed out.
Hopefully, the guides above have helped you figure out the reasons you've got so much 'System' data, and most importantly you've reclaimed some disk space — especially for new MacBooks pre-installed with flash storage — every gigabyte is precious!
