You can delete the app cache on Mac in the same way as the user cache by going to ~/Library/Caches and removing the insides of the folders with the app name. Proceed with caution! Not all app cache can be safely cleared. Some app developers keep important user info on cache folders.
Eight Solutions to Free Up Space on Mac
- Downloads Folder.
- Unwanted Apps.
- Duplicate Photos and Media Files.
- Get rid of Trash.
- iTunes Backup.
- Temporary Files.
- Mac Mail Attachments.
- Move Files to an External Storage.
How to reset a MacBook Air or MacBook Pro
- Hold down the Command and R keys on the keyboard and turn on the Mac.
- Select your language and continue.
- Choose Disk Utility and click continue.
- Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.
The “System” section of the iPhone or iPad Storage is likely quite literal, it's the system software. Another option which consistently shrinks down iOS “System” storage is much more dramatic; erase the device, then reinstall iOS and restore from your backup.
Cleanup
- Clean User Cache. Go to /Library/Caches and selectively delete or delete all the files and then empty your trash bin.
- Clean System Logs.
- Remove Mail Attachments.
- Remove old iOS data.
- Remove incomplete downloads on iTunes.
- Empty Trash Bin.
- Remove Malware.
- Remove Browser Cache.
Optimize Mac Storage
- Click the Apple (?) icon in the menu bar, and select About This Mac.
- Click on the Storage tab.
- Click on Manage…
- You'll see recommendations for optimizing storage across several categories.
Find large files using the Storage Management app
- Choose Apple menu.
- Select About This Mac.
- In the window that appears, click Storage.
- Click Manage.
- As the Storage Management app opens, select Documents.
- Browse the Large Files to delete those you don't need.
When do I need to replace my Mac?
- Apple no longer supports the latest version of the software it runs (which could leave you vulnerable)
- The apps you need to use no longer run on it.
- The Mac struggles to perform the tasks you need it to - especially if you can't update the RAM or any other components.
If you don't have much right now, 256GB will likely be plenty of storage for you for the foreseeable future. If you have a lot of photos like me — I have more than 20,000 photos and videos in my iPhoto library, which takes up more than 100GB of space — then 256GB of storage on a MacBook Pro is flirting with danger.
So if you intend on keeping your Macbook Air for many years, going with 16GB is a good idea, seeing as memory usage keeps increasing, with newer versions of programs using more and more memory. It's what I'd do if I were to buy a Macbook Air.
Of course, SSDs mean that most people have to make do with much less storage space. A 1TB hard drive stores eight times as much as a 128GB SSD, and four times as much as a 256GB SSD. The bigger question is how much you really need. In fact, other developments have helped to compensate for the lower capacities of SSDs.
So is the base MacBook Air powerful enough? The point is that for most people, a MacBook Air is about web browsing and light work and such. The base model MacBook Air is powerful enough that — as surprising as this may sound — the extra $200 to upgrade to 16GB of RAM is probably not worth it for most.
256 GB is small for the entirety of college. You could probably do it by using cloud and obsessively deleting things you are not using, but it's really nice to have extra storage. Look at what they are using it for. You can probably get away with 128gb.
That means you're likely to spend more than the cost of AppleCare+ before you even factor in the price of the drive itself. Consequently, the AppleCare+ fee covers you for a total of up to six repairs. On that basis, AppleCare+ for Macs definitely seems worth it — except for one thing.
While the 256GB capacity is cheaper, you also need to consider MacOS, the Mac App Store apps, desktop software, and games you plan to install. You may find that 256GB just isn't adequate. Still, both may be suitable for work-focused MacBooks that don't need to store large video or music files.
If you are going to download some music or video to enjoy offline, then 256GB should be enough. If you want to download a lot of music or video, or just want to not worry about space when doing so, then get 512GB.