https://forge.codesys.com/forge/talk/Engineering/thread/70c158c0f2/2026-02-20T08:36:08.519000ZRecent posts to Unable to install previously installed version2026-02-20T08:36:08.519000Z2026-02-20T08:36:08.519000Za-simonehttps://forge.codesys.com/u/a-simone/https://forge.codesys.comf299dc5d60bd00734aa46add9837f92976aca7bb

<div class="markdown_content"><p>Same problem, someone solved it?</p></div>

2022-09-02T19:40:08.030000Z2022-09-02T19:40:08.030000Zdraganhttps://forge.codesys.com/u/dragan/https://forge.codesys.com2118df67588ee7089208fee1cd3e959258307b85

<div class="markdown_content"><p>Is there some some more efficient way to clean those entries? I'm deleting like an hour and installation still doesn't work.</p></div>

2022-09-02T19:28:27.698000Z2022-09-02T19:28:27.698000Zdraganhttps://forge.codesys.com/u/dragan/https://forge.codesys.comf2e87a49857bbbe5d694d18bcb54d139e7faad14

<div class="markdown_content"><p>There are entries that could not be deleted.</p></div>

2022-06-27T07:18:17.367000Z2022-06-27T07:18:17.367000Zpscharfhttps://forge.codesys.com/u/pscharf/https://forge.codesys.com91f3d3f04de416769e73ca6d2bfc076740995e4d

<div class="markdown_content"><p>If someone has the same problem and sees my post:<br/> The installation was still in the windows registry.<br/> Deleting the entry from the regestry solved the problem.</p></div>

2022-06-27T07:18:12.660000Z2022-06-27T07:18:12.660000Zpscharfhttps://forge.codesys.com/u/pscharf/https://forge.codesys.com4b660e8ef523a8d5c29dfeae02ee3c0039174417

<div class="markdown_content"><p>If someone has the same problem and sees my post:<br/> The installation was still in the windows registry.<br/> Deleting the entry from the regestry solved the problem.</p></div>

2022-06-15T12:58:41.757000Z2022-06-15T12:58:41.757000Zpscharfhttps://forge.codesys.com/u/pscharf/https://forge.codesys.com304662ef563c1ee1326c57185d32fd3989616884

<div class="markdown_content"><p>I am trying to install a version, that I had previously installed on my computer (SP11).<br/> When I try to install it, I get the options modify, repair and uninstall in the installShield Wizard, but when I click any of the options, I get error 1605: "This action is only valid for products that are currently installed". <br/> So it seems, that when starting the Wizard, it thinks, that the version is still installed, so it gives me the options modify, repair, uninstall.</p></div>