Photoshop RAM error in the 1803 update of Windows 10

When you want to use a tool in Photoshop, you might face with an error which tells you there's not enough RAM to operate.

Don't worry it doesn't mean that your system is an old grandpa and you need to upgrade its RAM, as I have a Surface Pro 4 with 8GB of RAM.

The first (not-working) solution is to go to Preferences > Performance in the Photoshop Edit menu.

But it'll prompt you that a value between 8 and 96 required so you won't be able to fix it with the Performance tab of the Photoshop...

The only %100 working way you can try is to simply using the Registry Editor in Windows 10:

• Search for "regedit" via Cortana.
• Then go to "HKEY_CURRENT_USER" > "Software" > "Adobe" > "Photoshop" > "120.0" (ONLY If you're using Photoshop CC 2018. The folder name would differs by different versions of Photoshop)
• Here Right-Click on the "120.0" folder and go to "New..." then choose "DWORD (32-bit) Value"
• When you want to type a name for the newly added item exactly copy-paste the following name:

OverridePhysicalMemoryMB

• After creating the mentioned item, Right-Click on it and select "Modify..."
• In the opened window, firstly make sure that Hexadecimal is active and then enter "2400" as the Value data (For a device like Surface Pro 3, you would check it on Decimal and also set "24000" for value).

Done!

Photoshop won't tell you "there's not enough RAM" or "a value between 8 and 96 is required" anymore.

Your problem is fixed and you don't need to continue reading, else than you want to know why I'm posting it on Windows forum not the Adobe forum.

Because it's not a problem with Adobe. Why?

It's a long story.

I was using Photoshop CC 2017 for about one year on my Surface Pro 4 without any problem.

But after I updated its Windows 10 version to 1803 from 1709, I experienced the issued bug.

Firstly I upgraded my copy of Photoshop to CC 2018, hoping the problem to be solved by doing that.

But the problem exist even after spending money...

So I tried a very deeper solution then.

I reset my PC using the "recovery image .zip" file which is officially released for every single Surface device model.

And I totally cleaned it also (just like that I want to sell it to someone else 😁 lol) just in order to ensure that I'll receive a very fresh version of Windows 10 afterwards...

The problem has been fixed!

I mean that I installed Photoshop CC 2018 again on it and there was no RAM error at all.

But I want you to pay attention to version of Windows 10.

My freshly installed Windows 10, was 1703 not 1803.

As I updated Windows 10 to 1803 just a few hours later than I checked that the RAM error of Photoshop is fixed in 1703, the error came back again!!!

At that time, I understood that there's a serious problem with the 1803 version of Windows 10 which cause Photoshop CC 2017&2018 to face with a RAM error as Photoshop works fine with the 1703 or 1709 version of Windows 10.

As I truly love Windows and Surface devices, so I don't want them to be infamous because I saw the exact same problem in my classmate's device.

This is the only reason why I took this time to report this bug.

Thank Microsoft team to at least hearing about these bugs...