Can't Open PSD File

Hello, I'm trying to open a PSD file and get the error "Could not complete your request because of a disk error".  I've opened it many times in the recent past with no problem.  I've done quite a bit of research on this but still no solution.  I've also had this error recently on other, but not all, PSD files as well, files that I've always been able to open.

I have a Dell laptop with 32 GB memory, and hard drive with capacity of 915 GB, less than half of which is used.  I use Windows 10, which I prefer to Windows 11.  I have PSE version 15, use only Expert Mode, and do not use Organizer.  I really do not want to use a newer version of PSE.  I have lots of 3rd party plugins, effects, and custom fonts (including ones I created) that would take me considerable time to have to do again in a newer version of PSE.  I also believe 99% of the enhancements Adobe makes every year do not affect Expert mode anyway, so see no benefit of upgrading.

I did find a similar problem in the Photoshop forum (full, i.e. not Elements) but did not find a solution that worked for me.  Things I've tried:

- Ran a disk repair, as well as a "chkdsk" which did not find any disk errors.  From everything I've read, the "disk error" message really is not due to actual disk errors.

- Emptied the Recycle Bin, which did increase my performance since I haven't done that in a while

- Resetting Preferences

- In Preferences, I have "Available RAM" of 25620 MB with "Use" at 70%.  I've tried as low as 60% and as high as 85%.  I have Cache Levels set to 6 and have tried 2, 4, and 8.  I have "Use Graphics Processor" set to the default (checked) and have also tried it unchecked.  

One weird thing I tried, that I found using a search, is to Install an open source graphics program called Krita.  Some people had luck using this to open the PSD file, after which it could be opened in Photoshop (full).  I tried that, and sure enough, it subsequently opened in PSE, but only with one composited layer.  You lose all adjustment and other layers, as well as saved selections, etc.  This does confirm though, at least to me, that this problem is not a "disk error" as specified in the error message, but instead something that PSE and full Photoshop, regardless of version, is not handling correctly.

Any other thoughts or suggestions would be appreciated.  Thanks.