You should be able to delete the partition, if you're sure that everything is working okay. So you did an upgrade versus a clean install? I hope everything went smooth with that. If later on you decide to do a clean install, you can using your upgrade disc. A lot of people have done it with no problems at all.
If you have problems deleting the partition you can use a free app called: Partition Wizard. An ISO image to burn to a CD or CD-RW may be downloaded
HERE.
Its a 33.9MB download and you can use ImgBurn (free app) to burn it. Its a bootable CD so you can delete and re-size partitions outside of Windows.
About Partition Wizard
- Partition Wizard is a Windows based partition manager.
It supports both MBR and GUID partition table format running on 32/64 bits Operating System including Windows XP, Vista, Windows Server 2000/2003/2008, and Windows 7. Working as partition magic, Partition Wizard provides powerful and professional functions to manage partition including Move/Resize Partition, Copy Partition, Create Partition, Delete Partition, Format Partition, Convert File System, Hide/Unhide Partition, Explore Partition, Partition Recovery and much more.
Partition Wizard allow home users, business users, and system administrators to easily perform partition operations safely and quickly. The Enhanced Data Protecting technology keeps your data safe even in cases of power outages or hardware failure.
- Partition Wizard is provided absolutely FREE OF CHARGE for homes and businesses.
Partition Wizard is optimized and divided into Home, Business, Server, and Enterprise Edition.
>>Compare Editions
Partition Wizard Bootable CD
Partition Wizard Bootable CD allows user to boot computer directly into Partition Wizard to manage partitions. Features including
Rebuild MBR,
Partition Recovery,
Move/Resize Partition,
Copy Partition,
Create Partition,
Delete Partition,
Format Partition,
Convert File System,
Hide/Unhide Partition,
Explore Partition...
Hope this helps you out.