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I am experiencing exactly the same issue as this question the only difference being I am using Inno Setup instead of Sublime Text.

I can read/write to the mapped (Z:) drive with any application (notepad, wordpad, paint, etc...), even dropping into command line I have full read/write access, but Inno Setup does not even save its .iss file without giving a "Access is denied" error. As in the linked question, this message also appears to come from Inno itself.

To be clear, I am talking about the Inno compiler editor itself not being able to even save the .iss file, I am not talking about what the generated installer is supposed to do.

Unfortunately the accepted solution does not apply to Inno Setup.

I have no clue on what prevents Inno from writing to the mapped drive. As for now the only workaround I have found is to copy/paste the whole Z tree in C, use Inno (without any problem) and then re-copy/paste the whole tree back into Z, which is.. well, rather inefficient.

I am using Windows 10 2004 x64 English International, the shared resource is a NFS export from a linux server. Inno Setup is the latest 6.1.2

UPDATE: I can confirm that Inno Setup is the only application on the PC that can't write to the shared folder. Literally everything else works without any problem.

I tried uninstall/reinstall with no luck. I also tried reverting back up to version 5.5.0, still no luck. I tried to find any log whatsoever, no luck there either. For unknown reasons Inno is denied write to the network drive.

user815129
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  • I have a problem with the inno setup compiler editor itself, it cant even just save the plain iss file. I am not talking about what the created installer will do. – user815129 Dec 10 '20 at 19:58
  • I can open, edit and save the iss using the notepad with no problem, but Inno keep saying "Access denied" as I hit save. May very well be some windows specific issue i have no idea. Of course compilation on Z fails because of a denied write access. – user815129 Dec 10 '20 at 20:34

1 Answers1

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Try to disable your antivirus. I had the exact same problem and found this solution here, which worked for me. In my case, with Avast, I just had to add an antivirus exception for the Inno Setup installation folder (C:\Program Files (x86)\Inno Setup 6). If it can help anyone having the same issue.

Mohnrow
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