Hi John, I think I'm getting closer to resolving the issue. The Flashscreen does actually display immediately when I click on the tile to start the sim via the desktop shortcut link that is installed from FSUIPC7 (its a MS2020 flashscreen).
When I double click on the FSUIPC7.exe file, I get the VCRUNTIME140_1.dll error. Following the instructions in the READMe.txt, I have identified that I currently have 2 VC++ redistributables for 2017 (x65) and (x86) (nothing showing for 2015 and 2019)), installed in the Windows App management panel, and from the Microsoft Visual Studio 2015, 2017 and 2019 link from the READMe.txt, I have the options to download the following:
1) x86: vc_redist.x86.exe
2) x64: vc_redist.x64.exe
3) ARM64: vc_redist.arm64.exe
Please confirm which of these I need to download after I have de-installed the existing 2017 x65 and x86 from the Windows management panel.
Many thanks
Gary