Opselith
POWERSHELL / ACTIVEDIRECTORY
FreeIntermediateRead-onlylow

Find stale AD computers

Find enabled Active Directory computer accounts with an old or missing replicated logon timestamp and export the review candidates to CSV.

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Generated locally in your browser · Review before running · Opselith does not connect to your tenant

What this PowerShell script does

Finds AD computer accounts whose LastLogonDate is older than the cutoff or not recorded. ReviewReason shows OlderThanCutoff or UnknownLastLogon; a blank date is a review candidate, not proof of age.

Requirements

  • Inactive days - e.g. 90
  • CSV output path - Example: C:\Temp\report.csv

Environment

  • Module: ActiveDirectory
  • Permissions: Directory read access
  • Output: CSV report
  • Context: Windows host with RSAT
  • Risk: Low
Review before you run The script is generated locally. Test outside production first.
NEXT STEP

Ready to generate

Configure Find stale AD computers in the Builder, review the generated PowerShell and run it yourself in your own PowerShell session.

Configure this script →Open Builder
More about this script

Why use this template?

Use this free PowerShell script when you need to find enabled computers that have not logged on recently. It is generated locally and can be reviewed before you run it yourself in your own PowerShell session.

The template uses ActiveDirectory and requires Directory read access. Output: CSV report. Level: Intermediate. Action: Read-only. Risk: Low.

Review before running

The script is generated in your browser. Read it before you run it, and test it outside production first. “Read-only” describes the script itself; anything you add around it can still change data.

Generate the script

  1. Open the template in the PowerShell Builder.
  2. Enter the requested values and review the module, permissions, output and risk.
  3. Generate the script, read it carefully, and test it outside production before use.

The script is generated locally in your browser. Nothing needs to be uploaded to Opselith.

Generate Find stale AD computers →

How to use this result

Use this report as a review queue for enabled Active Directory computer accounts with no recent replicated logon timestamp, not as an automatic deletion list.

When this helps

  • Prepare a stale-computer review before disabling or removing old computer accounts.
  • Find enabled computer objects with a blank or older LastLogonDate than your chosen threshold.
  • Create a repeatable CSV snapshot for workstation and server account hygiene reviews.

How to read the result

  • LastLogonDate is based on the replicated lastLogonTimestamp value, so it is intentionally approximate rather than a precise last-use timestamp.
  • A blank LastLogonDate is included as a review candidate. It is not proof that the computer is unused or safe to remove.

Things to check

  • Verify servers, infrequently connected devices, lab systems and other known exceptions before changing any computer account.
  • Choose a threshold that fits your environment and compare the result with device-management or ownership evidence when available.

What to do next: Review the oldest candidates first, confirm device ownership and purpose, and only then use a separate approved process for any disable or removal action.

Related tasks

Official references

Before you runModule, permissions, inputs, compatibility and script checks
OPS / SCRIPT DETAILS

Script details

Finds AD computer accounts whose LastLogonDate is older than the cutoff or not recorded. ReviewReason shows OlderThanCutoff or UnknownLastLogon; a blank date is a review candidate, not proof of age. Review these details before generating or running the script.

reportingfindpermissionsdeviceinactive
Generated here. Run by you.Opselith does not connect to your tenant or run PowerShell. After generating, review the script and run it in your own PowerShell session.

What it works with

Module: ActiveDirectory

ActiveDirectory lets PowerShell work with on-premises Active Directory and is normally installed through Windows RSAT.

Context: Windows host with RSAT

Compatibility: Windows PowerShell 5.1 / ISE is supported for this Active Directory template.

Permissions and changes

Permissions: Directory read access

Risk: Low

Read-only: designed to collect information without intentionally changing the target environment.

Changes: Read-only. The script reads data and does not intentionally change the target environment.

Inputs

  • Inactive days - e.g. 90 (Required)
  • CSV output path - Example: C:\Temp\report.csv (Required)

What to expect

Output: CSV report

Expect a CSV file at the path you choose. Open it in Excel or another CSV viewer and review the rows.

Example: C:\Temp\report.csv

This template is in the Free library and is generated locally in your browser. Opselith does not run it; you review and run the script in your own PowerShell session.

Example use

Finds AD computer accounts whose LastLogonDate is older than the cutoff or not recorded. ReviewReason shows OlderThanCutoff or UnknownLastLogon; a blank date is a review candidate, not proof of age.

Enter the required values in the Builder, review the generated script and confirm the output before running it.

Before you run: Make sure your account has Directory read access. Check that the ActiveDirectory PowerShell module is available and that you are using the supported PowerShell version. Review the generated script and output path, then test outside production first.
Script checksWhat has been verifiedQA reviewed
Static checksPassed
PSScriptAnalyzerPending
Real-world run testNot yet recorded
Last checkedNot yet recorded

Real-world run results are shown only after Opselith reviews and accepts a tester report.

Tester: report a result →
TEST STATUSWhat Opselith has checked

Last reviewed: 10 Sept 2026

PSScriptAnalyzer: Awaiting a release PSScriptAnalyzer gate that includes this script. No analyzer pass is claimed yet.

Pending or Not yet recorded means there is no accepted result on file yet. A passed analyzer check does not mean the script has been run in a real tenant.

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