
Fix OneDrive 404 Not Found & File Access Denied Errors
You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...
Software troubleshooting desk

You try to open a file in OneDrive and see a 404 Not Found message, or you get an Access Denied e...

After a Windows update, some users see a proxy error in Outlook—something like “Cannot connect to...

After a recent Outlook update, you might see a '502 Bad Gateway' error when trying to send or rec...

When a scheduled task fails with error 0x80070005 and the message "Access Denied", i...

When Firefox starts but shows none of your bookmarks, passwords, or extensions, the profile may b...

If you need to revert Windows settings to their default state—for troubleshooting or preparation—...