How to map OneDrive as a network drive letter
One nice feature with Microsoft OneDrive over many other folder sync services such as Dropbox is that it can be mapped as a network drive letter, much like a NAS drive on a home network. The free OneDrive service provides 15GB of space and this is doubled to 30GB for those who use the mobile app to sync the phone's photos.
The main advantage with accessing OneDrive as a network drive is that no files are stored on the computer. This is particularly useful for laptop or Windows tablet users with a small SSD or someone with several hundred gigabytes of data on OneDrive (e.g. with the Office 365 Home subscription). The obvious catch is that files take longer to open and save and that it totally depends on an Internet connection, unlike the sync app where synced files can be accessed and edited offline. Of course a workaround is to copy & paste the files you need to a local folder to use in an location without connectivity, then copy the changed files back later on.
Microsoft has a support article showing how to map OneDrive as a network drive letter using a loophole in the 'Save to Web' feature in Word 2010, but for those looking for a quicker way or don't have Word 2010, the following guide should work. The Microsoft guide also talks about setting up a Windows Live ID online provider in Windows, but so far I haven't had any issues across several computers without doing that.
1. Go to the OneDrive website www.onedrive.com and sign in.
2. Right-click on 'Files' at the top-left and copy the link ("Copy shortcut" in Internet Explorer, "Copy Link Location" in Firefox or "Copy Link Address" in Chrome):
3. Open up Notepad and paste the link. Copy the CID code similar to as shown below:
4. Go into Windows Explorer and click on 'Map Network Drive':
5. Choose a drive letter to use, then type in the address "https://d.docs.live.net/", followed by the CID code you got in step 3, so it looks like the following:
6. Tick the option "Connect using different credentials".
7. If you would like this network dive to be remembered, tick "Reconnect at logon". Note that doing so can make Windows Explorer take several seconds to appear (including 'Save As', 'Open', etc. screens).
8. Click on Finish. After a few seconds, it will ask you to log in, so type in your Windows live e-mail address and password. If you chose "Reconnect at logon" for step 7 and don't wish to keep typing in your logon details each time the PC boots, tick "Remember my credentials".
9. Click on 'OK'. If all goes well, the drive network drive should appear: