
How to Fix 'Access Denied' to an Outlook Mailbox Folder
You try to open a folder in Outlook—Inbox, Sent Items, or a custom folder—and get an “Access Deni...
Software troubleshooting desk

You try to open a folder in Outlook—Inbox, Sent Items, or a custom folder—and get an “Access Deni...

You open OneDrive and see a 502 Bad Gateway error when syncing files. This usually means a tempor...

After a recent Office or Windows update, Outlook may fail to start or show errors about a missing...

After a Windows update, you might see a 'token expired' or 'your credentials did not work' error ...

If your PC is running slow and Task Manager shows high CPU usage from a process related to Window...

If Outlook stops syncing email, calendar, or contacts after an update or add-in installation, a d...