DE 4.5 INSTALLED DOES NOT OPEN

[john_k_nuck]

I have been using DE on my laptop (OS W10, Firefox) had no problems till yesterday when my pc froze.  Had to hard power to shut down and restart.  Then DE stopped opening.  I uninstalled it and reinstalled but did not work.   I tried downloading with Edge, but no joy.  I have not seen any error messages.  Help would be greatly appreciated.  Thank you.

[john_k_nuck]

I managed to sort it out.  I did a system restore to a date about 2 weeks back and it fixed the problem.  I now have the 4.5 version of DE in working order.