Microsoft admits Outlook might freeze when saving files to OneDrive

Microsoft's January Windows update has delivered another blow for unsuspecting users – apps including Outlook might freeze when saving files to cloud storage services such as OneDrive or Dropbox.

The megacorp acknowledged the latest issue days after releasing an emergency out-of-band update to deal with connection and authentication failures in the Windows App. Yet another fault in the update caused some Windows 11 23H2 PCs to refuse to shut down or hibernate.

According to Microsoft, after installing the January 13 update, "some applications might become unresponsive or experience unexpected errors when opening files from or saving files to cloud-backed storage, such as OneDrive or Dropbox."

One application is Outlook, which, when combined with a PST (Personal Storage Table) file on OneDrive, "might become unresponsive and fail to reopen unless its process is terminated in Task Manager, or the system is restarted." Sent emails might also fail to appear.

The workaround ...