[davidsharpe]

PC has been Win 10 for a long time, new problem just started a few days ago. Last night "new updates" were processed and problem still exists

Left click generates the error "This file does not have a program associated with it for performing this action. Please install a program or if one is already installed, create an association in the Default Programs control panel"

Right click gives context menu with option to "open", using it open file explorer

[realwarder]

Download the "Folder" registry file from here:


File Association Fixes for Windows 10 (Default Settings)

Unzip and run. Possibly reboot.

[orlbuckeye]

How to set default programs in Windows 10 - CNET

What might of happened when you did the update the file association was removed. If you click on a file with the XLS extension sna you don't have excel on the machine or another spreadsheet you will get the same error or if you try to open a .PDF with adobe reader or a clone of reader.