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Question: LOW MEMORY WARNING ON MY MAC

I keep getting a warning that my mac is running low on memory.


When I go into Disk Utilities the Hard drive says


Used 164.29GB Other Volumes 1.84GB Free 833.86 GB

The visual blue bar would not even take up 1/3 of its overall length


The processor is 1.6GHz Intel Core i5

Memory 8GB 1867MHz DDR3

Graphics Intel HD Graphics 6000 1536MB


It is also running really slowly


I have spent 2 days sorting out photos. There are only about 1700 images.

I do however still use iPhoto and the images are in both iPhoto and Photos and both libraries.


Any advise would be appreciated I am not very computer literate.


Happy New Year


Regards Libby

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Jan 1, 2019 7:49 AM in response to libbystano In response to libbystano

Memory (RAM) and storage (hard disk / SSD) are not related to one another.


That Mac has plenty of available storage. If you are running low on memory Activity Monitor can be used to identify the memory-intensive processes causing that warning.


To learn how to use Activity Monitor please read the Activity Monitor User Guide. For memory usage, refer to View memory usage in Activity Monitor on Mac.


Once you determine the memory-intensive process or processes, a solution can be provided. WIthout that information it is premature to draw any conclusions, but the number one explanation for that warning is having inadvertently installed adware. To learn how to recognize adware so that you do not install it, please read How to install adware - Apple Community.

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Question marked as Helpful

Jan 1, 2019 7:49 AM in response to libbystano In response to libbystano

Memory (RAM) and storage (hard disk / SSD) are not related to one another.


That Mac has plenty of available storage. If you are running low on memory Activity Monitor can be used to identify the memory-intensive processes causing that warning.


To learn how to use Activity Monitor please read the Activity Monitor User Guide. For memory usage, refer to View memory usage in Activity Monitor on Mac.


Once you determine the memory-intensive process or processes, a solution can be provided. WIthout that information it is premature to draw any conclusions, but the number one explanation for that warning is having inadvertently installed adware. To learn how to recognize adware so that you do not install it, please read How to install adware - Apple Community.

Jan 1, 2019 7:49 AM

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Feb 11, 2019 6:59 AM in response to libbystano In response to libbystano

I have finally solved this issue, that I've been having for over a year and want to share with everyone, because our Mac's should not be this slow!!


Over a year ago my wife got annoyed with me having a ton of browser windows open on our mac with my stuff. So she created a new user login to our mac for me.


Since then we've had SLLOW computer and low memory notifications constantly. I upgraded the memory to maxed out specs. 8gb for 4 slots resulting in 32gb of memory RAM.


Still same issues...


After searching another issue through forums I've determined the issue is the Fast switching option Mac OS has built in and I believe is the default setting when creating multiple users.


The issue is that multiple users only uses more storage (Hard Drive Space) unless you have fast switching turned on, then it uses additional Memory (RAM) to remember setting and keep apps running on the other account in the background. Turn this feature off and my computer became 4x faster again. HOW TO DO THIS:

Head to System Preferences, and then open the “Users & Groups” panel. In the “Users & Groups” panel, click the “Login Options” option. Settings here will be locked (grayed out), so click the lock icon at bottom-left and enter your password. Then turn off the “Show fast user switching menu as” option. Save the setting and re-lock the settings.


And that is it. Immediate faster and no more memory issues.


iMac (27-inch, Late 2012)

2.9 GHz Intel Core i5

32 GB 1600 MHz DDR3

Running OS High Sierra, about to upgrade to Mojave.



Feb 11, 2019 6:59 AM

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Question: LOW MEMORY WARNING ON MY MAC