I have an issue with Windows Explorer not displaying PSD files... (photoshop CC 2019 All my PSD files appear as white rectangles, so it's impossible to identify the different files and work efficiently. I have installed SageThumbs, and the .psd extension is checked in the settings, however it doesn't work. It seems that it stopped displaying the thumbnails after one of the recent Windows 10 updates. Does anyone has a solution to get the PSD thumbnails back? Thanks!
It may be that they are multi-layer PSDs.
Many systems have difficulty displaying thumbs if the layering is complex.
The only 'fix' is to save a small jpg next to each PSD, to act as your 'thumb provider'.
Example from a Mac [icon previews are off, personal pref, but it can't display even when asked]
Sometimes, I'll get one layer showing up - looking odd with its mask but no actual subject -