we have now tested the current FDM version with all possible windows version (Win7 SP1, Win10x86 Home, Win 10x64 Home, Win 10x64 Professional) - and in all version, we can´t reproduce it - the FDM simple opens and you can scan and update the addons. So, I guess, that has something todo with your configuration because in most cases, the FDM works as expected - we have currently only a few reports to this.
Therefore a few questions:
- Do you have any firewall, anti-virus, defender, … running on your system?
- Is your account an Administrator account or a normal user account?
- Do you use a windows-account or a local account in Win10?
Try to start the FDM and when it´s closing (or nothing happend), can you upload the latest log-file of the FDM please … you find the log-files here: