ALL experts has the same error: "cannot load"

 

Since 2 days all my experts has the same error:

"cannot load C:/......./expert1-2-3-4.....ex4" for ALL EXPERTS.


I have made an update of the paid expert and now I have the message that 5 licences are active.


It work 2 days ago and I have loose all my settings

 
Is it about MQL5 Market products?
It happened when Windows made key updates.
You should delete those products from Metatrader, and install them from same Metatrader once again (and one activation will be lost).