Why Am I Getting the Not Enough RAM Error In Photoshop?

New Here ,
Jul 21, 2021 Jul 21, 2021

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I tried to do a simple object selection in Photoshop and was told that the operation could not be completed because I do not have enough RAM.

My computer has 16 GB RAM.   According to Task Manager, only about 48% of my RAM was being used.
I set the preferences to allow PS to use all available RAM.  I also tried the fix to add the OverridePhysicalMemoryMB entry into the registry.

Does anyone have any other ideas?

Thank you in advance!

Zev Steinhardt

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Adobe Community Professional ,
Jul 21, 2021 Jul 21, 2021

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First of all, don't give Photoshop 100% of the RAM. There is a suggested range shown; stay within that.

Second, how much scratch disk space do you have available?

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New Here ,
Jul 21, 2021 Jul 21, 2021

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Hi, Lumigraphics!  Thank you for responding!

I have two scratch disks set up -- my hard drive (SSD) with 37 GB available, and then my external hard drive with about 5 TB.

Zev Steinhardt

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Adobe Community Professional ,
Jul 21, 2021 Jul 21, 2021

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You need more scratch disk space, and your internal hard drive is getting full regardless. Time to buy another external drive maybe.

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New Here ,
Jul 22, 2021 Jul 22, 2021

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Thanks, Lumigraphics.

Will it help if I make my external drive (with 5TB free) as the main scratch disk instead of the internal?

Zev Steinhardt

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Adobe Community Professional ,
Jul 22, 2021 Jul 22, 2021

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Yes 5Tb is plenty of scratch space.

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