Treat local Machine Configuration remediation tests as real changes to the test host

Source facts

For an AuditandSet package, Start-GuestConfigurationPackageRemediation tests the Set method by attempting changes in the local environment. It is not merely a structural inspection of the package. Microsoft documents elevated execution on Windows and sudo-based execution on Linux.

The command normally emits output only for errors; verbose mode helps investigate Set events. Microsoft directs users to run Get-GuestConfigurationComplianceStatus afterward to confirm the resulting state. Microsoft Learn.

Applicability

Confirm the package mode and current supported testing platform. Review the package’s intended settings and dependencies before allowing its Set method to run on a developer workstation or shared build worker.

DSE recommendation

DSE recommends separating structural checks, compliance observation and active remediation in the test plan. Use an isolated, recoverable test host for the active stage and record which settings are expected to change. Do not interpret the word test as permission to modify an administrator’s ordinary workstation.

Verification

Capture the relevant starting state, run the approved remediation test and inspect both errors and resulting compliance. Compare the affected settings with the intended change list and investigate unexpected effects. Verify the recovery or rebuild procedure before reusing the test host. Silence from the command should not replace the documented post-remediation state check.

Official references

Microsoft Learn: How to test machine configuration package artifacts. Source retrieved September 9, 2026.