I couldn't open or create new project unity with crash bug reporter pop up

(window7, 64bit, unity 5.6.of3)
Suddenly today,I couldn’t open or create new unity project with crash bug reporter pop up.after I select project or creat new project unity open as white window but soon close it and pop up bug reporter.
I deleted that unity and download unity again but still not open
please help.

I had this problem, and what fixed it for me was downloading Unity version 5.5 instead. (Download Archive) Don’t know the cause of the problem, but at least I’m up and running. Hope this helps.

Thank you so much Mallonjp~

I tried to set up from ver.5.5 to 5.2
ver. 5.2 work~!!
thank you~

I hope Unity should know this crash bug issue