InDesign CS6 problem -- will no longer open
We have used Adobe InDesign for years, from CS2 to CS6. A few days ago, CS6 would not open. Whenever I try to open it, this error message displays:

Any idea why it has stopped working? What does the Error status Oxc000012f indicate?
I have the Upgrade software and can reinstall it if that's the only solution. We are about to retire and do not plan to upgrade again and don't want to be forced to pay for subscriptions.
Today Adobe Acrobat 9 Pro would not load either 😞 The message that appears instructs me to uninstall and reinstall Acrobat too 😞
I'm using Windows 10.
Thank you for any tips/advice!