I use Linux Mint, avoiding Windows at all costs, but since I need Win to run B4A I use VBox and Windows 7. Having been doing this for years I was puzzled by the snags encountered when I had to reinstall everything. I am OK now. I showed Dr. Google my error message and he (eventually) said: "You need to install the Microsoft Visual C++ Redistributable again on the Windows machine." I did this and I am fine once again. At least I have the time for these setbacks... don't we all? Thanks for you offer to help. Be safe, careful and stay well.