# 13.25 Installer Corrupted & Missing Digital Signature

**URL:** https://resource.dopus.com/t/13-25-installer-corrupted-missing-digital-signature/60377
**Category:** Help & Support
**Created:** [August 24, 2026, 12:45am UTC](https://resource.dopus.com/t/13-25-installer-corrupted-missing-digital-signature/60377 "2026-08-24T00:45:02Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![PYCHBI](https://resource.dopus.com/user_avatar/resource.dopus.com/pychbi/32/64658_2.png) [@PYCHBI](https://resource.dopus.com/u/PYCHBI)
#### Post date: [August 24, 2026, 12:45am UTC](https://resource.dopus.com/t/13-25-installer-corrupted-missing-digital-signature/60377/1 "2026-08-24T00:45:02Z")

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Reporting an issue with the latest 13.25 installer.

The package I downloaded manually via the Download manually link on the  
[official 13.25 page](https://resource.dopus.com/t/directory-opus-13-25/60349)  
(MD5: `02d3009806a7d0d62d67fe374b43c515`) fails to install, showing the error: "The setup files are corrupted. Please obtain a new copy of the program."

Additionally, this specific file lacks a digital signature.

For comparison, an older 13.25 installer I downloaded two days ago (MD5: `17b717e92cd74e4fa04655d3823d13b2`) installs without any problems and has a valid digital signature.

 ![PixPin_26-08-24_08-34-04](https://resource.dopus.com/uploads/default/original/3X/b/2/b29c57ce27e3124166f47309dafb023a18a047e6.jpeg)

 ![PixPin_26-08-24_08-53-28](https://resource.dopus.com/uploads/default/original/3X/4/b/4bfdcc9f7613c4d954b99d1b4b8a4b9b1eaf5d7c.jpeg)

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<div class="post-metadata">

### Author: ![Jon](https://resource.dopus.com/user_avatar/resource.dopus.com/jon/32/12713_2.png) [@Jon](https://resource.dopus.com/u/Jon)
#### Post date: [August 24, 2026, 1:05am UTC](https://resource.dopus.com/t/13-25-installer-corrupted-missing-digital-signature/60377/2 "2026-08-24T01:05:24Z")

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Maybe try downloading it again?

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<div class="post-metadata">

### Author: ![PYCHBI](https://resource.dopus.com/user_avatar/resource.dopus.com/pychbi/32/64658_2.png) [@PYCHBI](https://resource.dopus.com/u/PYCHBI)
#### Post date: [August 24, 2026, 2:56am UTC](https://resource.dopus.com/t/13-25-installer-corrupted-missing-digital-signature/60377/3 "2026-08-24T02:56:13Z")

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Thanks, when I posted, I'd re-downloaded it three times, all with the same MD5, so I assumed a server-side issue.  
I just tried again just now and it works fine now 😉

By the way, do you still make modifications to the installation package with the same version number after the version update has been released? Because I noticed that the signing date has changed, the signing time is about three days later.

 ![PixPin_26-08-24_10-55-10](https://resource.dopus.com/uploads/default/original/3X/1/3/13dc4e39784ed851507f8d602352bfcd966a7367.jpeg)