https://forge.codesys.com/forge/talk/Engineering/thread/63c353334d/2026-09-07T06:20:05.048000ZRecent posts to Could not write options file at...2026-09-07T06:20:05.048000Z2026-09-07T06:20:05.048000ZAntonZhttps://forge.codesys.com/u/antonz/https://forge.codesys.com07b12260e08ac65844c23d08f7beedf68df3b9d1

<div class="markdown_content"><p>I ran into a similar issue, albeit not the exact same conditions nor the same file if I recall correctly. As a workaround I have used an elevated account to give my regular user account write access to the specific directory where the failure occurred. </p> <p>It is not pretty and I am not happy with it. It does work.</p></div>

2026-09-04T16:36:35.265000Z2026-09-04T16:36:35.265000Zbigwhighttps://forge.codesys.com/u/bigwhig/https://forge.codesys.coma9d08435114f842d91b6419680d5af5f6fdaedad

<div class="markdown_content"><p>Using Codesys 3.5.21.5. Tried installing both by full .exe file and using codesys installer. Installation requires elevation and completes just fine. However when running Codesys and closing the IDE, options-files are not written:</p> <p><img alt="" rel="nofollow" src="https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/e/e12fc5495f96a4f5cdcedf5edb06344525a146d4.png"/></p> <p><img alt="" rel="nofollow" src="https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/2/23b69aa31796f95f4c91d790bfdd416d3295f3bb.png"/></p> <p>Seems regular users are only given read-access to these files:<br/> <img alt="" rel="nofollow" src="https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/1/18bcff07f91e8eb4d500e07c6028a707b95a1331.png"/></p> <p>Running Codesys as admin works as admins have full access. Haven’t been necessary before to run as admin.</p> <p>Don’t think I have the issue on my work-laptop, but have experienced this on a number of other computers. Above screenshots are from my private stationary running Windows 11 Pro:<br/> <img alt="" rel="nofollow" src="https://us1.discourse-cdn.com/flex016/uploads/wago/original/2X/c/c115048e07fa4d4d276086099e3864e88aa2afe0.png"/></p> <p>Anyone else experiencing this? Is this by design or a known issue?</p></div>