Steps I took that resulted in the problem:
I was informed there is a parts update. After a long time the parts update had downloaded, but had not completed, and fritzing appeared to be hung. I had to reboot the computer. Now Fritzing just hangs after opening up (“Not responding” - using about 20% cpu, but apparently not doing anything)
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What I expected should have happened instead:
Should not have hung. Should display any progress so we know if it is actually doing something, and regular progress updates would mean Windows would not think it is not responding. But… how do I now cure the hang? 
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My version of Fritzing and my operating system:
fritzing.0.9.3b.64.pc
Windows 10 1803 (Build 17666.1000)
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Please also attach any files that help explaining this problem