interesting - assuming C and D are on the same server and with 2013 I don't think that KB will work since you can't install on the same server to a different location.
I think these are the steps you will need instead. This is from an earlier post regarding upgrading from Standard to advanced. below is a link to that post
1. Backup the MAS 90 folder somewhere else
2. Uninstall Sage 100 Standard
3. Reboot server
4. Install Sage 100 Standard on the new drive
5. Copy the mas90 folder back in, except for the Uninstall folder
https://90minds-com.socialcast.com/messages/17348161