Fix Dentrix installer failing with 'Unable to read information for OS' error

draft · practice-management dentrixos-and-system

Generated by docuprocessor (prompt article/v3) · 2026-04-22 13:08

Source thread

thread_id: spaces/AAAA05BdS6s/threads/PYiXKzm9iBU · 6 msgs · first 2024-06-10 · participants: Tech ATech B

Tech A 2024-06-10 15:51

Hey guys, any idea about this? I think that the "query failed" is related... looks like the installer can't pull the computer information. I already ran the installer as an administrator user. This is at Ruben Cueto office .

image/png image.png

**Dentrix 24.3.0.18966 Setup** is displaying an installation failure dialog stating: *"Unable to read information for OS,"* indicating that one or more mandatory system requirements are not met. The system information overlay (DentalHT tool) identifies the machine as **Host: FRONT-2**, running **Windows 8.1**, with **8098 MB RAM**, **IP: 192.168.1.115**; the Account, Service Tag, and Vendor fields all return **"Query failed."** No physical hardware is visible; all diagnostic information is software/OS-level.

Tech B 2024-06-10 16:16

Did you try just a sfc scan to see if it helps ?

Tech A 2024-06-10 16:17

https://answers.microsoft.com/en-us/windows/forum/all/msinfo32exe-system-information-not-working-error/ddc9c6ef-1832-42ee-a768-9878c81f196c

Tech A 2024-06-10 16:17

I found this

Tech A 2024-06-10 16:17

But that stops the LMI service

Tech A 2024-06-10 16:17

And they are not picking up the phone at the office

---
title: "Fix Dentrix installer failing with 'Unable to read information for OS' error"
category: practice-management
tags: ["dentrix", "os-and-system"]
source_thread_id: "spaces/AAAA05BdS6s/threads/PYiXKzm9iBU"
source_space: "spaces/AAAA05BdS6s"
generated_at: "2026-04-22T13:08:52"
participants: ["Tech A", "Tech B"]
---

# Fix Dentrix installer failing with 'Unable to read information for OS' error

## Problem

Dentrix 24.3.0.18966 Setup fails during installation with the error "Unable to read information for OS," indicating that one or more mandatory system requirements are not met. The system information overlay shows the machine details (Host: FRONT-2, Windows 8.1, 8098 MB RAM, IP: 192.168.1.115) but the Account, Service Tag, and Vendor fields all return "Query failed." Running the installer as administrator does not resolve the issue.

## Resolution

1. Run System File Checker to repair corrupted system files:
   - Open Command Prompt as administrator
   - Execute `sfc /scannow`
   - Allow the scan to complete and repair any found issues

2. If the SFC scan does not resolve the issue, the problem may be related to Windows Management Instrumentation (WMI) services that the Dentrix installer relies on to query system information.

Note: Some solutions for similar "Query failed" errors in system information tools involve stopping remote access services, which may interrupt remote support sessions.

## References

- Source discussion: `spaces/AAAA05BdS6s/threads/PYiXKzm9iBU`
- Attachments: - ![image.png](../attachments/PYiXKzm9iBU.PYiXKzm9iBU/image.png) — **Dentrix 24.3.0.18966 Setup** is displaying an installation failure dialog stating: *"Unable to read information for OS,"* indicating that one or more mandatory system requirements are not met. The system information overlay (DentalHT tool) identifies the machine as **Host: FRONT-2**, running **Windows 8.1**, with **8098 MB RAM**, **IP: 192.168.1.115**; the Account, Service Tag, and Vendor fields all return **"Query failed."** No physical hardware is visible; all diagnostic information is software/OS-level.

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