outlook pst onedrive

About this tag
Discussions tagged with 'outlook pst onedrive' on WindowsForum.com focus on a specific compatibility issue where Outlook Classic profiles store PST files in OneDrive-synced folders. Users report that after certain Windows 11 updates, Outlook may hang, refuse to reopen, or trigger re-downloads of mail when PSTs are located on OneDrive. Microsoft has acknowledged the problem and released out-of-band hotfixes, such as KB5078167, to address the file-system interaction bug. The tag also covers related topics like OneDrive Known Folder Move and broader Patch Tuesday regressions that affect cloud-synced file workflows. These threads are relevant for IT administrators and power users managing Outlook data in cloud storage environments.
  1. OneDrive Known Folder Move Gets Easier Undo on Windows 11

    In a rare bit of good news for people who still want their Windows desktop to act like a local desktop, OneDrive’s Folder Backup (Known Folder Move) on Windows 11 has quietly gained a better undo flow — in some builds you can now stop folder backup and have OneDrive move your files back to the...
  2. Windows 11 January 2026 Patch Tuesday: OOB Fixes for RDP and Secure Launch

    Microsoft moved quickly to contain a trio of disruptive regressions introduced by the Windows 11 January 2026 Patch Tuesday wave, shipping targeted out‑of‑band (OOB) updates that restored Remote Desktop sign‑in flows and fixed a configuration‑dependent shutdown/hibernate bug — while a separate...
  3. KB5078167 January 24 2026 hotpatch fixes Remote Desktop and OneDrive PST issues

    Microsoft’s January 24, 2026 hotpatch — KB5078167 — landed as a targeted, out‑of‑band repair that addresses two high‑impact regressions introduced earlier in the month: Remote Desktop authentication failures and a file‑system interaction bug that caused apps (including Outlook in certain...
  4. Windows 11 January 2026 Update: Security Fixes, But Stability Breaks

    Microsoft’s first major Windows 11 update of the year has introduced a string of stability and compatibility problems that went from annoying to blocking for many users — and Microsoft has already been forced into emergency out-of-band patches while some serious issues remain under...
  5. Windows Patch Day Regressions: OOB Fixes, Outlook PSTs in Cloud, RDP Failures

    Microsoft has confirmed a fresh wave of regressions tied to the January Patch Day security updates: some applications may stop responding or report errors when opening or saving files stored in cloud-synced locations such as OneDrive or Dropbox, Outlook Classic profiles that store PSTs on...