Hello,
a customer of ours reports a problem where during the installation the Installer hangs at the "Preparing files for removal" stage.
The only thing out of the ordinary with his system is that the windows system temp folder is in a custom location set via a environment variable and all drives are encrypted using bitlocker.
I asked for a verbose log which is attached here.
Thank you very much for your help and Happy New Year
Best
Markus