---
sourceDocument: Australia IT Service Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-service-management

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia IT Service Management

ft:clusterId :

    - itsm

bundleId :

    - itsm

workflow :

    - Technology


---

# DEX policies for non-persistent VDIs

# DEX policies for non-persistent VDIs {#ariaid-title1}

* Release version: Australia
* 
* Updated April 2, 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Policy reference for DEX monitoring on Windows non-persistent (NP) Virtual Desktop Infrastructures (VDI). Use this reference to understand available check instances, frequencies, and parameters for application, network, and device monitoring.

## Policies for Windows --- Application {#dex-policies-np-vdis__section_lnp_r1b_bxb}

DEX provides the following policies for applications.  
{#dex-policies-np-vdis__table_cyl_3cq_53c__entry__5}

| Check instance | Description | Frequency | Historical or latest | Check instance parameters\* |
|-|-|-|-|-|
| os.win.check-app-historical | Collects apps metrics from nonpersistent VDI Windows machine and sends metric data to Metric Base and ServiceNow® Instance. | 5 mins | Historical | cpu_usage, memory_usage, uptime, last_access_time, crashes, is_running, freezes |
| os.win.check-app-sccm-latest | Collect application-specific metrics for the Microsoft System Center Configuration Manager app on theWindows device | 24 hours | Latest | Not applicable |
| Important: \* DEX Windows Apps Metrics with the uptime check instance parameter only runs with the Local System account. |||||
[ ]

{#dex-policies-np-vdis__table_cyl_3cq_53c}

## Policies for Windows --- Device {#dex-policies-np-vdis__section_x4q_2md_hwb}

DEX provides the following policies for non-persistent VDI devices.  
{#dex-policies-np-vdis__table_pvb_gdq_53c__entry__5}

|   |   |   |   |   |
|-|-|-|-|-|
| os.win.check-system-metrics-historical | Collects all historical metrics. | 5 mins | Historical | memory_details, io_usage_write, io_usage_read, cpu_usage |
| os.win.check-system-metrics-latest | Collects all latest metrics. | 24 hours | Latest | cpu_usage |
[ ]

{#dex-policies-np-vdis__table_pvb_gdq_53c}