Hi plane crazy,
I am not with Laminar Research; just a flight simmer.
Do you have your antivirus/ malware software turned off? Do you have administrator rights to run the software? If not you need to do so.
Attach your latest log.txt file for others to have a look for a possible solution if the suggestions above don't work. The file that needs to be attached is created when you shut down or your system crashes.
Good luck
Glenn