Why is my mac running so slow suddenly

To quit apps, right-click or ctrl-click and then select Quit. My desktop was full of files, folders, screenshots etc.

12 Reasons why your Mac or MacBook is so slow all of a sudden?

You may want to delete any shortcuts or files that you do not use or need. You may create folders and subfolders and organize your files. Clean your desktop periodically. I wrote an article regarding the slow Cloud Keychain issue.

Why is macOS Mojave slow and how to fix It

Fixing that problem did speed up my Mac considerably. To fix that, I turn off iCloud and turn back on. Then click Sign Out. Follow the onscreen instructions. And then Sign in.

Check your Internet connection

Please try each, one at a time, then test to see if the problem is fixed, if not then go on to the next tip. Apple has this great tool: Apple Diagnostics. It will also provide possible solutions if any issues are detected.


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Here is how:. The SMC controls a lot of power related stuff and reseting this may help you resolve your problem. To do this, you need to follow different steps depending on your computer model. Apple explains how you can do this. Starting your computer in safe mode may help you.

Why is my Mac Running Slow? | 5 Ways to Speed up Mac

It offers all-in-one Mac cleaning features including a disk cleaner for junk files, big files and duplicate files. Uninstalling apps and deleting useless files from your Mac is easy, but the residual junk or cache files left behind often fill up your disk space and clutter the system.


  1. 2. Check your Startup Items.
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  8. When the free space on your drive gets really low, your Mac stops operating efficiently and becomes very slow. Cleaner frees up your disk space by removing all the unnecessary and unwanted files in just one click. So, head over to the Mac App Store download and install the latest version. When you start your Mac, a lot of things get loaded in the background. Give your Mac a clean start and make OS X run faster. Lighten the load on your Mac. This will remove the application from the list and it will no longer be loaded on startup.

    Due to increased workload, for example, when you open multiple heavy applications simultaneously , your RAM tends to get cluttered. Your RAM should have enough space to read and write contents efficiently without any lag. When this memory gets low, your Mac system or apps may become slow or unresponsive. Activity Monitor shows you which resources various processes are using on your system.

    Check the list of apps and processes that are running on your Mac in real-time. Quitting unnecessary apps that take up a lot of processing power could make a huge difference in speeding up your slow Mac.

    Why Is My Mac So Slow?! The Top 12 Reasons and Fixes

    Be careful not to remove any critical or necessary processes! This may be caused by a list of programs and processes starting up automatically when you power on. Click the lock at the bottom of the window in order to make changes.

    The list items are processes that will automatically start when you log in to the current user account. If you don't need these programs when you log in, they're slowing you down! Select the offending items and hit the '-' button to remove them.

    2. Startup disk is getting full

    The less programs that start when you log in, the quicker your startup will be. When your iMac or MacBook notifies you that there is an update available, it is all too easy to ignore it, and carry on with your important work or conversation with that friend. However, this can be detrimental to your Mac's performance. Updating your Mac OS can fix issues and bugs which may increase your computer's battery life, fix security issues and even increase speed! Apple are always looking for ways in which to improve the speed of their operating system, so it's easy to see why older versions of MacOS are generally slower.

    Please note that Apple does not approve of upgrading hardware in their computers. In fact, doing so can invalidate your warranty. That being said, if you're not worried about warranty, there are plenty of tutorials online demonstrating how you can upgrade components of such computers.