How to hide the useless archive folder in Outlook.com

A complete guide is available here. One thing they forgot to mention is the first time you start MFCMAPI.exe:
1. On the Tools menu, click Options.
2. Click to enable "USE MDB_ONLINE when calling OpenMsgStore".
3. Click OK.

Having troubles with your MS Office?

Check out the OffCAT tool. Also works on Windows 10.

Can't remove folders/files in Outlook deleted items folder

Sigh.... sometimes even my precious Outlook works on my nerves. But at least there is a solution.