NanaZip locks up when trying to update a password protected zip or 7z file
Author: riveter1Created Sep 16, 2026Updated Sep 16, 2026
Labelsbug
Prerequisite checks
- My system fulfills the minimum software requirements.
- I have downloaded NanaZip from an official source (GitHub, Microsoft Store, My Digital Life Forums, SourceForge, and Windows App Community)
Describe the issue
NanaZip locks up when trying to update a password protected zip or 7z text file
Reproduction steps
Select a text file. Right click and Select Add to Archive. I have tried zip and 7z formats. Add an Encryption password. Click OK. Open the file in NanoZip and enter the password. Make an edit to the file. Save it. NanoZip says: File 'Test.txt' was modified. Do you want to update it in the archive? Click OK. The file name field turns gray and the file name disappears. NanoZip totally locks up. The process has to be killed to close it.
Expected behavior
Update the archive and stay alive.
NanaZip veresion
Today's v7
Windows version
Windows 11 Home Version 25H2
Additional context
7-Zip can handle password protected files with no issue.
Source: M2Team/NanaZip