Photoshop CS6 will not open and keeps saying there is not enough RAM when it has worked before with less free memory

Question

So this question goes hand-in-hand with another one of my posts, Urgent: Cannot run any program as administrator, gives file system error (-1073740791) on Windows 10, in that I believe they are related. I don't remember how it happened or when it started, but 'twas about a week ago when I started to not be able to open applications as administrator. Restarting file explorer seemed to have fixed it, but it came back again and this time restarting file explorer no matter how many times did not fix it. A few days ago I discovered a third party application was hogging up hundreds of megabytes of free memory, and I believed this to be the issue of why I couldn't open Photoshop, but after I had ended the process and saw my free memory gain hundreds of megabytes, I still could not open Photoshop.

So I went looking online for a solution to the Photoshop problem and there was a video that told you to add a registry key to bypass physical memory restrictions, but I cannot open registry editor as it will give me the same error as opening any other app as administrator.

Please help, this is very urgent. I am using Windows 10.

Edit: To elaborate, here are the list of issues that I mentioned in my post:

• Files cannot be run as administrator. They give a "File System Error" with the code (-1073740791)
• Photoshop CS6 cannot be run and tells me there is not enough RAM when it has run before with less available memory.

I believe these two issues are correlated in that they are possibly caused by the same event. Simply rebooting my computer can almost certainly fix these problems but I cannot do so right now due to invaluable data I am still working on that cannot be easily saved.

Answer 1

not be able to open applications as administrator. ... I discovered a third party application was hogging up hundreds of megabytes of free memory, .... still could not open Photoshop..... found a registry key to bypass physical memory restrictions, but I cannot open registry editor

You have many problems with this machine and it appears that constant efforts to fix have made things worse.

Reinstall Windows.

Back up important and needed documents, email, favorites and so on to a USB drive. Double check this.

Now check the main drive for errors and replace if necessary.

Go to Windows Settings, Update, and scroll down the right side for Recovery. Do a Windows Reset. This will reinstall Windows and you need to reinstall your Apps.

This is the best approach now, because the damage has been too difficult to solve.