To make sure you do, open up the Apple menu and click on 'About This Mac.
Select 'Storage' and then check to make sure you have enough space on your hard drive. You need at least 15GB free. It may also be worth switching from a Wi-Fi connection to an Ethernet cable, to ensure your internet connection is as reliable as possible. Delete them, then reboot your Mac and try to download macOS Catalina again. You may be able to restart the download from there. We've seen a lot of people complaining that when trying to download and install macOS Catalina, the download stops at around If you are encountering this issue, try starting your Mac in Safe Mode hold down Shift on the keyboard while it boots , then try downloading and installing macOS Catalina again.
First of all, you'll want to make sure you have a Mac that can run macOS Catalina. The following Macs are compatible:.
Double-click the file to begin installation. If this is the case, you'll need to force a reboot of your Mac or MacBook. Don't worry, the 'Setting Up Your Mac' message means the update is finished, so you won't lose any data or damage anything by restarting your Mac. To do so, press and hold down the power button for a few seconds until the Mac or MacBook turns off.
Wait a few more seconds, then turn it back on. If you're having trouble logging into your Mac or MacBook after installing macOS Catalina, or you're stuck in a loop where you log in, then get logged out again, the following steps might help.
This removes a file, which makes it appear like you're starting Catalina up for the first time. Don't worry, nothing important is getting deleted. Press Enter, then restart your Mac. Some readers have got in contact to let us know that they are experiencing problems with the Mail app in macOS Catalina. If you use Mail to read and send emails, and it's not working correctly after installing macOS Catalina, read on to find out how you can fix the most common issues.
If Mail keeps crashing while you use it, open up Finder and then click on 'Go' from the top menu and select 'Go to Folder'.
Find com. MailServiceAgent and move them, either to Trash or somewhere temporary like your desktop. Empty Trash, then restart your Mac and see if that works. There are reports that the search function no longer works in the Mail app after installing macOS Catalina. The first thing to try, if you encounter this problem, is first close Mail completely. Then hold Shift and click on the Mail icon to open it in Safe Mode. Then, close Mail again, then hold Shift and open Mail again. Finally, close Mail yet again, then reboot your Mac.
Open Mail normally, and search should work again. When you are seeing this "your startup disk is almost full" messages, it means that your MacBook or iMac is running on low space and you should clear your startup disk as soon as possible. Or the Mac will be acting weirdly because there is no enough storage space, such as getting intolerably slow, apps crashing unexpectedly.
So find out what's taking up space on your startup disks and make room on startup disk immediately. Why is my startup disk getting almost full. You can find the culprits by visiting About this Mac. Step 1 Click on the Apple icon and select About this Mac. Step 3 It will show how many storage has been used in your startup disk by which kind of data, such as photos, documents, audios, backups, movies and other. If you are running on macOS Sierra or higher, you can optimize storage on Mac to free up space on startup disk.
Click Manage and you can have all the options to optimize storage.
Basically, the solution is to move your photos and documents to iCloud, so make sure you have enough iCloud storage. As you have figured our what is taking up space on the startup disk, you can start to clean the startup disk. It can find out all junk files on startup disk and clean them in one click. For example, if you find that photos is taking up too much space of the startup disk, you can use Similar Image Finder and Photo Cache on MacMaster to clear the startup disk.
To clean system storage on startup disk, MacMaster can delete System Junk , including cache, logs and more. It can make the startup disk almost full gone right away.
Download the free trial version of FonePaw MacMaster to have a try right away. Also, you can clean startup disk step by step manually, which will take longer time and more patient. Read on. This may sound silly, but when you drag a file to the Trash, it is still using your disk space until you empty the file from the Trash. So the first thing you should do when your Mac tells you the startup is almost full is to empty the Trash.
Before you do so, you should really make sure that all files on the Trash are useless. Emptying Trash is simply and can free up space on your startup disk right away. Step 1 Right click the Trash icon in the the Dock.
Your Downloads folder is a goldmine of unnecessary files. Check out your folders for photos, music, and videos as well. Remove duplicated files if there are any. The best option for these is to compress and turn them into smaller files.
This is recommended for huge files like movies and videos. After deleting all those junk, they are just sitting in the Trash. Click on the Empty button, and this should free up considerable space in your startup disk. It gets rid of cookies, search history, login details, and other unnecessary browser data. If you use your browser more often that you want to admit, you may be accumulating more data than you think.
Free Download Buy Now. Download the software and launch it. Click the Scan button to begin looking for the available browser data on your Mac.
The "Mac Startup Disk Full" message may appear at the most inopportune moment. Learn some easy tips on how to clean up your Mac, as well as figure out . But to help you do it all by yourself, we've gathered our best ideas and solutions below. A full startup disk is something that every Mac user will.
Once the scan is complete, the software will show you the browser histories, cookies and cache and their respective file sizes. If you have more than one browser installed on your Mac, you will see all of them listed on the left side of the window. Tick the items that you want to delete. When you have selected everything that you want to get rid of, press Clean.
Click Confirm. Now that you know where to look and what to search for, you can keep your startup disk from getting full.