Please understand that Fiddler is currently developed on Windows 8.1, and it is tested on Windows 8, Windows 7, and Windows XP. Thousands of developers at Microsoft run Fiddler on Windows 8 and later versions every day.
The default certificate generation in Fiddler has not changed in approximately a year, and is identical between Fiddler 184.108.40.206 and the latest build (220.127.116.11).
If behavior has changed on your system, it's not due to changes in Fiddler's certificate generation itself.
The message "The specified network password is not correct." would be from the Windows cryptographic APIs when they fail to retrieve the private key associated with a certificate.
If you haven't tried it yet, you might consider checking whether you have the same issue when the Fiddler CertMaker Add-on is installed (http://fiddler2.com/r/?fiddlercertmaker
). This add-on generates and uses certificates without using the Windows APIs, and thus should be less likely to encounter the sort of problem described here.
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