@JohnGa 4.8RC1 is a release candidate, it can still have issues. I'm not sure why you install a release candidate.
32bit build should be just fine as Windows 64bit executes 32bit software.
It should be possible to open projects created with 4.8RC1 in 4.7.2
"Where are the logs written during crashes?" - on Windows I guess in the Event Log in MMC.
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Unsolved QtCreator random hangs on Windows 10
• JohnGa -
Solved Qt Creator 4.8.0 start up crash
• functor0 -
Unsolved another 'no valid kits found' error
• over9000 -
Unsolved Clang-Format
• MrRobot