Microsoft releases emergency OOB update to fix Outlook freezes
ID: aee6cc3e-4f17-5d15-b803-ee256ee98a33
STIX ID: report--aee6cc3e-4f17-5d15-b803-ee256ee98a33
Feed Name: Bleeping Computer
Microsoft issued out-of-band updates for Windows 10/11 and Windows Server to address a post–January 2026 Patch Tuesday issue where classic Outlook can freeze or fail to reopen when PST files are stored in cloud-backed storage (e.g., OneDrive, Dropbox), sometimes causing Sent Items not to show and emails to redownload. The fixes are available via Windows Update and the Microsoft Download Catalog; affected admins can install immediately, while others may wait for upcoming preview or next Patch Tuesday releases.
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