I see a previous bug report indicating that this problem was fixed in 5.89. I had no problem with 5.89, but when I performed a manual update from 6.0 to 6.01, then from 6.01 to 6.02 free versions, I got the problem every time: upon launch, the home screen flashes for a moment then disappears. I am running Windows 10 Home 64-bit, with all current updates. I use Malwarbytes 4.5 and McAfee LiveSafe 16.0.