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Apple Mac Computer Running Slow

Apple Mac Computer Running Slow Help and Support by Keith Thomas.

A Apple Mac Computer will run slow for many reasons and the best way to diagnose a Apple Mac Computer that is running slow, is to follow a simple step by step process to quickly identify the problem, and the very first task is to identify and find out exactly which Apple Mac Computer model you have.

  • Apple Mac Computers that are 2007 to 2012 models – Time to replace the computer!.
  • Apple Mac Computers that are 2013 to 2019 models. – Models with a SATA Macintosh HD are known to be slow!
  • Apple Mac Computers that are 2020 to 2025 models. – It is rare for an Apple Mac Silicon computer to be slow, get professional help!

For Apple Mac Computer Models that are 2007 to 2012, the most likely cause is a Macintosh Hard Disk that has become slow or very slow, and in 2025 or newer the Mac OS used, even on a iMac 2012 Computer that has become slow, Mac OS Catalina does not work now with email accounts that need two factor authentication and Mac OS Big Sur or newer is now needed and a 2012 iMac cannot be updated, so a new Apple Mac Computer might be the choice to use.

By following a simple step by step process, can help find out why a Apple Mac Computer is running slowly, some simple tasks to do, to start with.

Restart the Apple Mac Computer, to reset the RAM memory and to help optimise the RAM memory, Quit applications that are open on startup, and install any Mac OS updates that are waiting to be installed.

Get Help with a Slow Running Apple Mac Computer with Keith Thomas.

You can get professional on-site help with a Slow Running Apple Mac Computer in London for help at your home or at your office, simply Telephone: 07800 940756

What are the common reasons why a Apple Mac Computer is Running Slow?

Keith Thomas

1. The Storage Volume has become slow, which will cause Mac OS to run very slow.
2. The Apple Mac Computer has ran out of memory RAM, and needs a restart or Mac OS maintenance to be done.
3. The Apple Mac Computer has a Malware Infection, causing a unknown background task to make the computer run slow.
4. An outdated version of Mac OS can make using the Internet slow to use, updating the Mac OS to a newer supported version can help.
5. The Apple Mac Computer has low free storage space, which will cause Mac OS to be slow, or simply crash.
6. A Third Party Application software can make a Apple Mac Computer run slowly!
7. By having too many open applications on an Intel based Apple Mac Computer, especially when using Google Chrome, can make a Apple Mac computer run slowly.
8. An External Hard Disk Drive that is slow, can make Mac OS slow, if Apple Time Machine is running in the background.
9. A process known as a kernal_task can cause a high process task that makes Mac OS slow.
10. Apple Mac Safari, Google Chrome, Microsoft Edge can cause Mac OS to run slowly on Intel based Apple Mac Computers.

Where can I get On-Site Help with a Slow Running Apple Mac Computer in London?

Keith Thomas

If you have a slow running Apple Mac Computer in London and you need to get professional help at your home or at your office then you can arrange to contact Keith Thomas, a Apple Mac Computer Maintenance Specialist that can help diagnose, fix and help with on-site Apple Mac Computer Software Repairs in London.


Contact Apple Support Specialist Keith Thomas

📞 Phone Support: 07800 940756 Available 09:30 – 20:30, 7 Days a Week.

📱Urgent Help: Send a text message to 07800 940756

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  • Onsite Support: Serving London & Surrey and also Hampshire, Berkshire, Wiltshire.
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Keith Thomas – Apple IT Support Specialist since 1993, previously with Apple Computer UK. Providing expert troubleshooting for Apple users with premium onsite, remote, and telephone support.