I guess you have answered it yourself. User Profile corruption.
Log in as a different User. rename the problem profile. Log in as the original user again. A new profile will get created. If the crash is gone, copy your over your user data from the corrupted one.
If it does not solve the issue. Repeat steps with default folder too. This is the template profile, when creating new profiles.
Did this solve your problem?
Sorry this didn't help.
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