Hi,
FYI after uninstalling PDF24 Creator 1.0.07 and reinstalling PDF24 Creator 1.0.0.8 in my Windows 10 v2004 x64 laptop (Build 19041.746), the PDF24 Assistant would not save a print job from a browser with an error output:
Could not create temporary file: .\PDF24\9339187_2398109262_1.ps3
Please delete the following PDF24 temporary file folder: .\PDF24
Solution : Uninstall and reinstall PDF24 Creator 1.0.0.8 again.
Hope this helps.