Windows 11 April 2026 Patch Disrupts Third-Party Backup Tools
ID: 61f5fdad-d22e-5216-b95f-cc81cf1af7eb
STIX ID: report--61f5fdad-d22e-5216-b95f-cc81cf1af7eb
Feed Name: Cyber Press
Threat Score
Microsoft’s April 2026 Patch Tuesday update (KB5083769) is causing VSS failures on Windows 11 (24H2/25H2), breaking backups across multiple major backup solutions (Acronis, Macrium, UrBackup). Vendors recommend uninstalling the update to restore backups, but doing so re-exposes systems to the vulnerabilities the patch addressed, forcing organizations to balance availability and security until a vendor or Microsoft fix is released.
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