Hi Warren,
Welcome to the Forum.
Do you have any third party application like ccleaner installed?
If you do, open ccleaner, then select Tools > Startup > Context menu
You should then see the various extensions added to the context menu, which you can select and disable for now.
After disabling them, try again to right click a file in your Storage folder to see if the Explorer.exe crash has stopped.
If it has stopped, then return to ccleaner's context menu, and enable one item, then check again whether you can safely right-click a file in your Storage folder.
Repeat this until it crashes your Explorer.exe again. You'll then know which extension is causing the trouble and you can either disable or choose delete from ccleaner.
Ccleaner can be downloaded and used for free from here:
https://www.piriform.com/ccleaner/download/standard
Regards,
Regedit32