You can work around this issue by taking the following steps: Remove the affected calendar (s) from Outlook Desktop. Enable “Turn on shared calendar improvements” in the Calendar Properties. For information about how to turn on this setting, see Outlook calendar sharing updates. Restart Outlook Desktop.

If a program or a service accesses User32.dll incorrectly, the program or the service will not work correctly. User32.dll errors are typically corrected by repairing the User32.dll file or by reinstalling the program, the hardware component, or the driver that is causing the error.

If you need to send a file that's blocked by Outlook, the simplest way to send your file is to upload it to OneDrive or a secure network share server such as SharePoint. Then send a link to the file. If you need to receive a blocked file, ask the sender to upload the file to OneDrive or SharePoint and send you a link.

Resolves a vulnerability in Windows Explorer that could allow remote code execution if a user visited a specially crafted webpage.

This error occurs when your graphics device driver has notified Windows that the device isn’t working properly. This may mean that the device has a hardware problem, or that the driver or driver software is failing. To fix this error, try the following: Update the device driver. Roll back the device driver.

Symptoms. In Windows 10, if you: Have a hybrid graphics system (an integrated GPU and a separate one) Run a game or app in windowed mode (instead of full-screen) Have Vsync enabled. You may see “tearing” (graphic corruption/distortion) in the upper-left corner of the game or app window.

Get solutions if your calendar won't sync or you can't edit shared calendars in Outlook.

ISSUE. Shared mailboxes stop updating automatically. The shared mailbox status in the bottom bar in Outlook Desktop will show “Updating this folder”. In addition, you can confirm this is the issue by looking at the Sync Issues folder of the primary Exchange account in the Outlook profile.

This article discusses issues after you enable Shared Calendar Improvements as detailed here: Outlook calendar sharing updates. STATUS: INVESTIGATING. The Outlook team is currently investigating the following issues and will update this article when more information becomes available.

If lots of your SharePoint or Microsoft Teams files get deleted, overwritten, corrupted, or infected by malware, you can restore an entire shared document library to a previous time. The restore will undo all the actions that occurred on both files and folders in the last 30 days.