# Retrieve operating system details of a computer

Returns the operating system information of a computer including OS name, version, service pack, architecture, and installation date.

## Endpoints

**GET** `/dcapi/inventory/computers/{resourceID}/osInformation`

## Request

### Request URL

```text
https://{server-hostname}:8383/dcapi/inventory/computers/{resourceID}/osInformation
```

### Scope

```text
Inventory.READ
```

### Header

```text
Authorization: d92d4xxxxxxxxxxxxx15f52
```

### Request Parameters

#### Request Headers

- **Accept** `string` (Mandatory): `application/osInformation.v1+json`

#### Path Parameters

- **resourceID** `string` (Mandatory): Resource identifier of the computer. Obtain from the response of the [Get Computers List](https://www.manageengine.com/products/desktop-central/help/api/onpremise/computers-getcomputers.html) API.

### Sample Request

```curl
curl --request GET \
  --url https://appdomain/dcapi/inventory/computers/{resourceID}/osInformation \
  --header 'Accept: application/osInformation.v1+json' \
  --header 'Authorization:  d92d4xxxxxxxxxxxxx15f52'
```

## Response Parameters

### HTTP Code 200

Response body: `application/json`

- `operatingSystem` `string`: Operating system name with architecture
- `installedSystemDrive` `string`: System drive letter where OS is installed
- `registeredTO` `string`: Name the OS is registered to
- `osVersion` `string`: OS version string
- `osServicePack` `string`: OS service pack or version name
- `osBuildNumber` `string`: OS build number
- `productID` `string`: OS product ID
- `licenseType` `string`: License type - Retail, OEM, Volume, etc.
- `osCDKey` `string`: OS product key

### HTTP Code 401

Response body: `application/json`

- `error_code` `string`: UAC_UNAUTHORIZED - user lacks the required uem-roles or credentials are missing
- `error_description` `string`: Authentication or authorization failure reason

### HTTP Code 404

Response body: `application/json`

- `error_code` `string`: RESOURCE_NOT_AVAILABLE - the specified resourceID does not exist or is not accessible
- `error_description` `string`: Resource not found message

### HTTP Code 500

Response body: `application/json`

- `error_code` `string`: INTERNAL_ERROR - unexpected exception in the service layer
- `error_description` `string`: Internal server error message

### Possible Response Codes

- **200**: HTTP code
- **401**: HTTP code
- **404**: HTTP code
- **500**: HTTP code

### Sample Response: HTTP 200

OS details

```json
{
  "installedSystemDrive": "C:",
  "registeredTO": "SampleUser",
  "licenseType": "Retail",
  "osBuildNumber": "26200.8246",
  "osVersion": "10.0.26200",
  "productID": "00000-00000-00000-AA000",
  "osServicePack": "Windows 11 Version 25H2 (x64)",
  "osCDKey": "XXXXX-XXXXX-XXXXX-XXXXX-XXXXX",
  "operatingSystem": "Windows 11 Professional Edition (x64)"
}
```

### Sample Response: HTTP 401

Missing credentials

```json
{
  "error_description": "Unauthorized access",
  "error_code": "UAC_UNAUTHORIZED"
}
```

### Sample Response: HTTP 404

Resource not found

```json
{
  "error_description": "The specified resource was not found",
  "error_code": "RESOURCE_NOT_AVAILABLE"
}
```

### Sample Response: HTTP 500

Server error

```json
{
  "error_description": "Internal server error",
  "error_code": "INTERNAL_ERROR"
}
```

## Rate Limits

![](https://www.zohowebstatic.com/sites/zweb/images/people/ico-help.png)

**Duration:** 1 minute | **Threshold:** 120 | **Lock period:** 5 minutes

Duration - Time window for the threshold.  
Threshold - Number of API calls allowed within the specified duration.  
Lock Period - Wait time before consecutive API requests.