Because of recent changes at Outlook.com, tasks, appointments, and contacts do not support attachments. You can add attachments to the items in Outlook 2013, but the attachments are hidden.
How to fix 'Outlook cannot discover settings for your account because a network connection could not be established. You may need to turn off Work Offline to automatically configure this account.' error in Outlook 2013.
In the People section of Outlook.com, I linked my Gmail, Twitter and LinkedIn contacts. I do not store any Outlook-only Contacts there, they are all linked. I'm syncing to Outlook but none of these linked People are syncing across.
When exporting contacts from Hotmail or Outlook.com website, you may receive a Translation Error message, telling you that a file error occurred in the translator. This is the result of Unicode encoding of the file.
If you use Office 365, you can view Internet Calendars (*.ics) in OWA, side by side with your Exchange calendar. Look for the Add Calendar link under the Share button on your OWA calendar. This works with Hotmail, Gmail and many other online calendars.
How to use a Microsoft account address with a Outlook.com account to sync appointments and contact with other computers or smartphones. This method works with the Outlook Connector in Outlook 2003, Outlook 2007, and Outlook 2010 and Outlook 2013's EAS account type.
When syncing Hotmail contacts between Outlook (using the Outlook Connector) and Windows Phone, web addresses may not be visible in Outlook.
What to do when Hotmail reports a different number of contacts than you are seeing in your Outlook Contacts folder.
Use a macro Outlook's Contacts with company names longer than 40 characters or more than 1024 characters in the notes field before importing them into Hotmail Connector's Contacts folder.
If you receive error this error code 0x80004005, also known as Error: 4202, it's caused by rouge entries on the Safe and Blocked senders lists. The standard fix is to delete "bad" entries on the lists in Hotmail online and in Outlook. A bad entry is usually a malformed email address, but may be an address with a character other than an alphanumeric. Several users report that their bad entries are single words and they are unable to delete them, the words keep coming back.