I rebuilt my system and installed Passion Flute.
So I ran the first of the three .rar archives with 7-zip and extracted.
Did the same with the second .rar. 7-zip asked me to override some samples. I hit 'yes to all' and 7-zip extracted. There were two messages in the log indicating that tho samples were corrupt.
Similar with the third rar.

Loading PF in Kontakt now reports that some samples are corrupt.

Don't remember having had these issues when I bought PF and installed the first time. Tried to download from my account but the links don't work anymore.

So, what can I do now?

Tab

If you can try redownloading all the RARs. You should have three RARs with just the samples (and you only need to start unpacking from one of them), and one RAR for just the engine (NKI, documentation...), which you unpack to the same folder, after or before the samples RARs.

Send me an email and I'll get you new download links right away--they usually expire after a month or so.