Stream: General

Topic: Isabelle2025/2025-2 disk permissions on windows


view this post on Zulip Ant S. (Mar 31 2026 at 13:47):

Whenever I install Isabelle 2025 or 2025-2 on an NTFS disk on Windows, it seems to create a permissions entry for an entity known as "SYSTEM" and one known as "NULL SID", to the point where opening Isabelle/jEdit is straight-up borked and tells me I don't have adequate permissions to run the executable (on a personal machine might I add) unless I recursively fix all of the permission entries. Considering this is Windows, I doubt it's the highest priority but I'm writing this in the hope that someone knows what's going on here

view this post on Zulip Ant S. (Mar 31 2026 at 13:48):

Also note: I have microsoft defender disabled, for the most part

view this post on Zulip Ant S. (Mar 31 2026 at 13:49):

the current fix is just to manually edit permission entries, but I think it would be good to know why this is necessary


Last updated: Apr 09 2026 at 09:11 UTC