check before: 2025-07-01
Product:
Microsoft 365 suite, Purview, Purview Communication Compliance, Purview compliance portal, Purview Data Loss Prevention, Purview Information Protection, Windows
Platform:
Online, Web, World tenant
Status:
Launched
Change type:
Admin impact, New feature, Updated message, User impact
Links:
Details:
Summary:
Microsoft Purview Information Protection will introduce on-demand classification of files on Windows devices starting mid-September 2025 (public preview) and mid-November 2025 (general availability). This feature helps discover and classify sensitive data for security, compliance, and audit purposes without impacting existing configurations.
Details:
Updated August 28, 2025: We have updated the timeline. Thank you for your patience.
We're introducing a new capability in Microsoft Purview Information Protection: On-demand classification of files on Windows devices. This feature will enable you to discover and classify sensitive content stored on devices, helping to strengthen your data security posture and meet compliance requirements.
This capability is especially useful for:
Investigating potential incidents or exposure risks
Surfacing older files that weren't captured in Data Loss Prevention (DLP) activity logs
Identifying sensitive content in place for audit or compliance use
This message is associated with Microsoft 365 Roadmap ID 496593.
[When this will happen:]
Public Preview: We will begin rolling out mid-September 2025 and expect to complete by late September 2025.
General Availability (Worldwide): We will begin rolling out mid-November 2025 and expect to complete by late November 2025.
Change Category:
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Scope:
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Release Phase:
General Availability, Preview
Created:
2025-07-01
updated:
2025-08-29
Public Preview Start Date
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Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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Pictures
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summary for non-techies**
Microsoft is introducing an "On-demand classification of files on Windows devices" feature in its Purview Information Protection suite, allowing organizations to manually scan and classify files for sensitive information, with a public preview starting in mid-September 2025 and general availability by mid-November 2025.
Direct effects for Operations**
On-demand classification of files
If the on-demand classification feature is rolled out without proper preparation, it may lead to unexpected performance issues on Windows devices due to resource consumption during scans, potentially disrupting user workflows.
- roles: IT Admin, End User
- references: https://learn.microsoft.com/purview/on-demand-classification, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=496593
Audit logging capabilities
The introduction of new audit events without prior communication may confuse users and admins, leading to misinterpretation of audit logs and compliance reports, which could affect compliance audits.
- roles: Compliance Officer, IT Admin
- references: https://learn.microsoft.com/purview/on-demand-classification, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=496593
Configutation Options**
XXXXXXX ... paid membership only
Data Protection**
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IT Security**
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explanation for non-techies**
XXXXXXX ... free basic plan only
** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2025-08-29 | MC Messages | Updated July 30, 2025: We have updated the timeline. Thank you for your patience.
We're introducing a new capability in Microsoft Purview Information Protection: On-demand classification of files on Windows devices. This feature will enable you to discover and classify sensitive content stored on devices, helping to strengthen your data security posture and meet compliance requirements. This capability is especially useful for: Investigating potential incidents or exposure risks Surfacing older files that weren't captured in Data Loss Prevention (DLP) activity logs Identifying sensitive content in place for audit or compliance use This message is associated with Microsoft 365 Roadmap ID 496593. [When this will happen:] Public Preview: We will begin rolling out mid-August 2025 (previously mid-July) and expect to complete by late September 2025 (previously late July). General Availability (Worldwide): We will begin rolling out mid-November 2025 and expect to complete by late November 2025. | Updated August 28, 2025: We have updated the timeline. Thank you for your patience.
We're introducing a new capability in Microsoft Purview Information Protection: On-demand classification of files on Windows devices. This feature will enable you to discover and classify sensitive content stored on devices, helping to strengthen your data security posture and meet compliance requirements. This capability is especially useful for: Investigating potential incidents or exposure risks Surfacing older files that weren't captured in Data Loss Prevention (DLP) activity logs Identifying sensitive content in place for audit or compliance use This message is associated with Microsoft 365 Roadmap ID 496593. [When this will happen:] Public Preview: We will begin rolling out mid-September 2025 and expect to complete by late September 2025. General Availability (Worldwide): We will begin rolling out mid-November 2025 and expect to complete by late November 2025. |
| 2025-08-29 | MC Last Updated | 07/30/2025 16:17:07 | 2025-08-28T21:54:28Z |
| 2025-08-29 | MC Summary | Microsoft Purview Information Protection will introduce on-demand classification of files on Windows devices starting mid-August 2025 (public preview) and mid-November 2025 (general availability). This helps discover and classify sensitive data for security and compliance without impacting existing configurations. New audit events will be introduced. | Microsoft Purview Information Protection will introduce on-demand classification of files on Windows devices starting mid-September 2025 (public preview) and mid-November 2025 (general availability). This feature helps discover and classify sensitive data for security, compliance, and audit purposes without impacting existing configurations. |
| 2025-07-31 | MC Last Updated | 07/01/2025 01:04:44 | 2025-07-30T16:17:07Z |
| 2025-07-31 | MC Messages | We're introducing a new capability in Microsoft Purview Information Protection: On-demand classification of files on Windows devices. This feature will enable you to discover and classify sensitive content stored on devices, helping to strengthen your data security posture and meet compliance requirements.
This capability is especially useful for: Investigating potential incidents or exposure risks Surfacing older files that weren't captured in Data Loss Prevention (DLP) activity logs Identifying sensitive content in place for audit or compliance use This message is associated with Microsoft 365 Roadmap ID 496593. [When this will happen:] Public Preview: We will begin rolling out mid-July 2025 and expect to complete by late July 2025. General Availability (Worldwide): We will begin rolling out mid-November 2025 and expect to complete by late November 2025. | Updated July 30, 2025: We have updated the timeline. Thank you for your patience.
We're introducing a new capability in Microsoft Purview Information Protection: On-demand classification of files on Windows devices. This feature will enable you to discover and classify sensitive content stored on devices, helping to strengthen your data security posture and meet compliance requirements. This capability is especially useful for: Investigating potential incidents or exposure risks Surfacing older files that weren't captured in Data Loss Prevention (DLP) activity logs Identifying sensitive content in place for audit or compliance use This message is associated with Microsoft 365 Roadmap ID 496593. [When this will happen:] Public Preview: We will begin rolling out mid-August 2025 (previously mid-July) and expect to complete by late September 2025 (previously late July). General Availability (Worldwide): We will begin rolling out mid-November 2025 and expect to complete by late November 2025. |
| 2025-07-31 | MC MessageTagNames | New feature, User impact, Admin impact | Updated message, New feature, User impact, Admin impact |
| 2025-07-31 | MC Summary | Microsoft Purview Information Protection is introducing on-demand classification of files on Windows devices to enhance data security and compliance. Public preview starts mid-July 2025, with general availability in mid-November 2025. Admins can access this feature in Purview without impacting existing configurations. No immediate action is required. | Microsoft Purview Information Protection will introduce on-demand classification of files on Windows devices starting mid-August 2025 (public preview) and mid-November 2025 (general availability). This helps discover and classify sensitive data for security and compliance without impacting existing configurations. New audit events will be introduced. |
Last updated 4 weeks ago ago
