@Liming-Tieu said in Notepad++ resets file permission bits for WSL files on save:

I’m getting the same problem with the 64bit version of NPP version 8.5.7

If you can, please 1st upgrade to the latest upcoming v8.7.5 (in the current v8.7.4 is a critical regression, it will be replaced by v8.7.5 soon). Why - there are many fixes which are related to this area, specifically - the next version from the yours (v8.5.8) fixed the overwriting of some NTFS metadata (“Fix saving files losing Alternate Data Stream issue. (Fix #1498, #8451, #8013)”).

(here you will find a convenient overview of all the changes in N++ versions: https://github.com/notepad-plus-plus/notepad-plus-plus/wiki/Changes )

Then please report back here, if your problem persists.