You need to delete a registry key.
I do not have Autodesk 360 installed, so I cannot tell you exactly which it is, but you should be able to work it out by looking at the values in it. Export the key as a backup before you delete it, in case you delete the wrong one.
- Type regedit in RUN dialog box and press Enter. Now go to:
KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\MyComputer\NameSpace
- Under this key, you'll see a few keys having name in following format:
{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

These keys represent those new items in My Computer window. If you select any key, you can see its description in right-side pane.
Select the desired key and delete it and it'll remove the associated item from My Computer window.
Following are some known Registry keys for My Sharing Folders, Web Folders and a few other items:
My Sharing Folders - {FC9FB64A-1EB2-4CCF-AF5E-1A497A9B5C2D}
Web Folders - {BDEADF00-C265-11D0-BCED-00A0C90AB50F}
Printers & Faxes - {2227A280-3AEA-1069-A2DE-08002B30309D}
Network Connections - {7007ACC7-3202-11D1-AAD2-00805FC1270E}
Administrative Tools - {D20EA4E1-3957-11D2-A40B-0C5020524153}
Fonts - {D20EA4E1-3957-11D2-A40B-0C5020524152}
Scheduled Tasks - {D6277990-4C6A-11CF-8D87-00AA0060F5BF}
Recycle Bin - {645FF040-5081-101B-9F08-00AA002F954E}
So if you are seeing any of above mentioned items in My Computer window, select the key and delete it and it'll delete the item from My Computer window.
Information from http://www.askvg.com/how-to-remove-nokia-pc-suite-folder-web-folders-my-sharing-folders-or-other-unwanted-items-from-my-computer/
Update:
Based on information in a comment, the key you need is
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace{A7B36FF9-3BB0-426B-A737-A997B80466D5}