|Use admin tools. |
Select start, run, type in compmgmt.msc /s.
Then use disk managment.
That would allow you to give it a drive letter or attach that space to a folder under C:
If you want to merge then you need third party software to manage partition.
"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10