:-) for s.o. who fixed it probably not. But I never had such a prolem so that I want to avoid suggestions. I know that Sudo can delete History Files...
The website you quoted mentions a Free and a Pro version, i would install the free version and use something like RevoUnInstaller to remove it to see...
Solely considering explorer-related crashes and excluding anything else, as said before in other such threads, if the problem with file explorer is a...