ReFS removable-media audit and blocking policy

Timelines and exceptions · All guidance changes

Windows · Official Microsoft guidance

No content change seen yet. Watched since today 18:58 UTC, last read today 18:58 UTC, next check 23 Oct 18:58 UTC.

Read the Microsoft source · Link to this observation · My radar

Timeline

From the capture of today 18:58 UTC

Next date January 2027 in 2 months · Enforced by default

2 dates
7 undated sections
3 with conditions

Audit / monitorafter 13 Oct 2026 Published timing is qualified; effectiveness is not confirmed.
Enforced by defaultJanuary 2027 Published timing is qualified; effectiveness is not confirmed.

13 Oct 2026 9 days agoafterAudit / monitor · unconfirmed
- IntroductionMilestone
  Starting with Windows updates released on and after October 13, 2026, Microsoft is making hardening changes to the Resilient File System (ReFS).…
- Timeline of changesMilestone
  October 13, 2026…
Today · 22 Oct 2026
January 2027 in 2 monthsmonth windowupdate release · Patch Tuesday 12 Jan 2027Enforced by default · unconfirmed
- Timeline of changesMilestoneException1 condition
- Take actionMilestone2 conditions

Settings and overrides named on this page

Registry values, policies and cmdlets the source mentions, with the dated steps that name them. Read the source for the values to set.

RefsRemovableDeviceMountPolicyOverride

Requirements, exceptions and scope

Take actionRequirementTentative2 passages
Auditing and enforcement behaviorException1 condition1 passage
Deployment considerationsRequirement1 passage
Group policy and registry configurationScope1 passage
RefsRemovableDeviceMountPolicy
Group PolicyScope1 passage
RefsRemovableDeviceMountPolicy
Registry settingsScope1 passage
RefsRemovableDeviceMountPolicy
Restart requirementRequirement1 passage

Extracted automatically from Microsoft's wording. Confirm dates, conditions and whether they apply to you in the source before acting; a month or quarter is a window, not a day.

Observed history and review priority

Captured today 18:58 UTC; extracted today 18:58 UTC. Extractor: microsoft-1/9/d9863eb412f92fa5ec3a8ca32e2dd7cfe8095530f456ecb1866608d1166a435d.

Review priority. Extracted assertions require review · Publisher marks guidance tentative · Applicability or exceptions require review

0 date changes and 0 condition changes across 0 compared revisions. Suggested check interval: 24 hours.

Earlier unavailable versions and edits between checks are unknown. A missing statement requires review; it does not mean the policy was cancelled. Recovered historical statements are not original revision snapshots.

No related evidence found in this installation's recent collection. This does not establish that no announcement exists.

What changed

First observed 22 Oct 2026

No field changes are shown for this selection.

Cite this recorded revision to keep the same title, summary, facts and links when the page changes.

A day selects the latest observation by the end of that UTC day; today's selection can change until midnight. History starts when this installation records it.